<caesura>

Break, pause, or interruption in the normal tempo of a composition. Typically indicated by "railroad tracks", i.e., two diagonal slashes.
Module
MEI.shared
Attributes
altsym, class, color, copyof, corresp, dots.ges, dur.ges, dur.metrical, dur.ppq, dur.real, dur.recip, facs, follows, fontfam, fontname, fontsize, fontstyle, fontweight, glyph.auth, glyph.name, glyph.num, glyph.uri, ho, label, layer, loc, n, next, oloc, part, partstaff, place, ploc, precedes, prev, resp, sameas, staff, startid, synch, to, tstamp, tstamp.ges, tstamp.real, type, vo, x, xml:base, xml:id, y
altsym(optional)Provides a way of pointing to a user-defined symbol. It must contain a reference to an ID of a symbolDef element elsewhere in the document. Value conforms to data.URI.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
color(optional)Used to indicate visual appearance. Do not confuse this with the musical term 'color' as used in pre-CMN notation. Value conforms to data.COLOR.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
dots.ges(optional)Number of dots required for a gestural duration when different from that of the written duration. Value conforms to data.AUGMENTDOT.
dur.ges(optional)Records performed duration information that differs from the written duration. Value conforms to data.DURATION.gestural.
dur.metrical(optional)Duration as a count of units provided in the time signature denominator. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.ppq(optional)Duration recorded as pulses-per-quarter note, e.g. MIDI clicks or MusicXML divisions. Value of datatype nonNegativeInteger.
dur.real(optional)Duration in seconds, e.g. '1.732'. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.recip(optional)Duration as an optionally dotted Humdrum *recip value. Value of datatype a string matching the following regular expression: "\d+(\.)*" .
facs(optional)Permits the current element to reference a facsimile surface or image zone which corresponds to it. One or more values from data.URI, separated by spaces.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
fontfam(optional)Contains the name of a font-family. Value conforms to data.FONTFAMILY.
fontname(optional)Holds the name of a font. Value conforms to data.FONTNAME.
fontsize(optional)Indicates the size of a font expressed in printers' points, i.e., 1/72nd of an inch, relative terms, e.g., "small", "larger", etc., or percentage values relative to "normal" size, e.g., "125%". Value conforms to data.FONTSIZE.
fontstyle(optional)Records the style of a font, i.e, italic, oblique, or normal. Value conforms to data.FONTSTYLE.
fontweight(optional)Used to indicate bold type. Value conforms to data.FONTWEIGHT.
glyph.auth(optional)A name or label associated with the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Allowed values are: "smufl" (Standard Music Font Layout.)
glyph.name(optional)Glyph name. Value of datatype string.
glyph.num(optional)Numeric glyph reference in hexadecimal notation, e.g. "#xE000" or "U+E000". N.B. SMuFL version 1.18 uses the range U+E000 - U+ECBF. Value conforms to data.HEXNUM.
glyph.uri(optional)The web-accessible location of the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Value conforms to data.URI.
ho(optional)Records a horizontal adjustment to a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value of datatype string.
layer(optional)Identifies the layer to which a feature applies. One or more values of datatype positiveInteger, separated by spaces.
loc(optional)Holds the staff location of the feature. Value conforms to data.STAFFLOC.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
oloc(optional)Records staff location in terms of written octave. Value conforms to data.OCTAVE.
part(optional)Indicates the part in which the current feature should appear. Use '%all' when the feature should occur in every part. One or more values of datatype a string matching the following regular expression: "(%all|#[\i][\c]+)" , separated by spaces.
partstaff(optional)Signifies the part staff on which a notated feature occurs. Use '%all' when the feature should occur on every staff. One or more values of datatype a string matching the following regular expression: "(%all|\d+(-\d+)?)" , separated by spaces.
place(optional)Captures the placement of the item with respect to the staff with which it is associated. Value conforms to data.STAFFREL.
ploc(optional)Captures staff location in terms of written pitch name. Value conforms to data.PITCHNAME.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
staff(recommended)Signifies the staff on which a notated event occurs or to which a control event applies. Mandatory when applicable. One or more values of datatype positiveInteger, separated by spaces.
startid(optional)Holds a reference to the first element in a sequence of events to which the feature applies. Value conforms to data.URI.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
to(optional)Records a timestamp adjustment of a feature's programmatically-determined location in terms of musical time; that is, beats. Value conforms to data.TSTAMPOFFSET.
tstamp(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
tstamp.ges(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
tstamp.real(optional)Records the onset time in terms of ISO time. Value conforms to data.ISOTIME.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
vo(optional)Records the vertical adjustment of a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
x(optional)Encodes an x coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value of datatype ID.
y(optional)Encodes a y coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
(MEI.shared) Attributes common to many elements.
(MEI.shared) Attributes that form the basis of the att.common class.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
(MEI.shared) Attributes that uniquely identify an element.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value of datatype ID.
(MEI.shared)
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value of datatype string.
(MEI.shared) Attributes that specify element-to-element relationships.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
(MEI.shared) Attributes used to supply a number-like designation for an element.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
(MEI.shared) Attributes capturing information regarding responsibility for some aspect of the text's creation, transcription, editing, or encoding.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
(MEI.shared) Attributes which can be used to classify features.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
(MEI.shared) Attributes which can be used to classify features.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
(MEI.facsimile) Attributes that associate a feature corresponding with all or part of an image.
facs(optional)Permits the current element to reference a facsimile surface or image zone which corresponds to it. One or more values from data.URI, separated by spaces.
(MEI.analytical) Analytical domain attributes.
(MEI.gestural) Gestural domain attributes.
(MEI.gestural) Attributes that record performed duration that differs from a feature's written duration.
dur.ges(optional)Records performed duration information that differs from the written duration. Value conforms to data.DURATION.gestural.
dots.ges(optional)Number of dots required for a gestural duration when different from that of the written duration. Value conforms to data.AUGMENTDOT.
dur.metrical(optional)Duration as a count of units provided in the time signature denominator. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.ppq(optional)Duration recorded as pulses-per-quarter note, e.g. MIDI clicks or MusicXML divisions. Value of datatype nonNegativeInteger.
dur.real(optional)Duration in seconds, e.g. '1.732'. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.recip(optional)Duration as an optionally dotted Humdrum *recip value. Value of datatype a string matching the following regular expression: "\d+(\.)*" .
(MEI.gestural) Attributes that record a performed (as opposed to notated) time stamp.
tstamp.ges(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
tstamp.real(optional)Records the onset time in terms of ISO time. Value conforms to data.ISOTIME.
(MEI.shared) Logical domain attributes.
(MEI.shared) Attributes that identify the layer to which a feature applies.
layer(optional)Identifies the layer to which a feature applies. One or more values of datatype positiveInteger, separated by spaces.
(MEI.shared) Attributes for identifying the part in which the current feature appears.
part(optional)Indicates the part in which the current feature should appear. Use '%all' when the feature should occur in every part. One or more values of datatype a string matching the following regular expression: "(%all|#[\i][\c]+)" , separated by spaces.
partstaff(optional)Signifies the part staff on which a notated feature occurs. Use '%all' when the feature should occur on every staff. One or more values of datatype a string matching the following regular expression: "(%all|\d+(-\d+)?)" , separated by spaces.
(MEI.shared) Attributes for identifying the staff associated with the current feature.
staff(recommended)Signifies the staff on which a notated event occurs or to which a control event applies. Mandatory when applicable. One or more values of datatype positiveInteger, separated by spaces.
(MEI.shared) Attributes that identify a relative starting point.
startid(optional)Holds a reference to the first element in a sequence of events to which the feature applies. Value conforms to data.URI.
(MEI.shared) Attributes that record a time stamp in terms of musical time, i.e., beats[.fractional beat part].
tstamp(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
(MEI.visual) Visual domain attributes.
(MEI.usersymbols) Attributes supplying pointers to user-defined symbols.
altsym(optional)Provides a way of pointing to a user-defined symbol. It must contain a reference to an ID of a symbolDef element elsewhere in the document. Value conforms to data.URI.
(MEI.shared) Visual color attributes.
color(optional)Used to indicate visual appearance. Do not confuse this with the musical term 'color' as used in pre-CMN notation. Value conforms to data.COLOR.
(MEI.externalsymbols) Attributes used to associate MEI features with corresponding glyphs in an externally-defined standard such as SMuFL.
glyph.auth(optional)A name or label associated with the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Allowed values are: "smufl" (Standard Music Font Layout.)
glyph.name(optional)Glyph name. Value of datatype string.
glyph.num(optional)Numeric glyph reference in hexadecimal notation, e.g. "#xE000" or "U+E000". N.B. SMuFL version 1.18 uses the range U+E000 - U+ECBF. Value conforms to data.HEXNUM.
glyph.uri(optional)The web-accessible location of the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Value conforms to data.URI.
(MEI.shared) Attributes capturing placement information.
place(optional)Captures the placement of the item with respect to the staff with which it is associated. Value conforms to data.STAFFREL.
(MEI.shared) Attributes that identify location on a staff in terms of lines and spaces.
loc(optional)Holds the staff location of the feature. Value conforms to data.STAFFLOC.
(MEI.shared) Attributes that identify location on a staff in terms of pitch and octave.
ploc(optional)Captures staff location in terms of written pitch name. Value conforms to data.PITCHNAME.
oloc(optional)Records staff location in terms of written octave. Value conforms to data.OCTAVE.
(MEI.shared) Typographical attributes.
fontfam(optional)Contains the name of a font-family. Value conforms to data.FONTFAMILY.
fontname(optional)Holds the name of a font. Value conforms to data.FONTNAME.
fontsize(optional)Indicates the size of a font expressed in printers' points, i.e., 1/72nd of an inch, relative terms, e.g., "small", "larger", etc., or percentage values relative to "normal" size, e.g., "125%". Value conforms to data.FONTSIZE.
fontstyle(optional)Records the style of a font, i.e, italic, oblique, or normal. Value conforms to data.FONTSTYLE.
fontweight(optional)Used to indicate bold type. Value conforms to data.FONTWEIGHT.
(MEI.shared) Visual offset attributes. Some items may have their location recorded in terms of offsets from their programmatically-determined location. The ho attribute records the horizontal offset while vo records the vertical. The to attribute holds a timestamp offset, the most common use of which is as an alternative to the ho attribute.
(MEI.shared) Horizontal offset attributes.
ho(optional)Records a horizontal adjustment to a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
(MEI.shared) Horizontal offset attributes specified in terms of time.
to(optional)Records a timestamp adjustment of a feature's programmatically-determined location in terms of musical time; that is, beats. Value conforms to data.TSTAMPOFFSET.
(MEI.shared) Vertical offset attributes.
vo(optional)Records the vertical adjustment of a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
(MEI.shared) Output coordinate attributes. Some elements may have their exact rendered *output* coordinates recorded. x and y attributes indicate where to place the rendered output. Recording the coordinates of a feature in a facsimile requires the use of the facs attribute.
x(optional)Encodes an x coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
y(optional)Encodes a y coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
External symbols component declarations.
glyph.auth(optional)A name or label associated with the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Allowed values are: "smufl" (Standard Music Font Layout.)
glyph.name(optional)Glyph name. Value of datatype string.
glyph.num(optional)Numeric glyph reference in hexadecimal notation, e.g. "#xE000" or "U+E000". N.B. SMuFL version 1.18 uses the range U+E000 - U+ECBF. Value conforms to data.HEXNUM.
glyph.uri(optional)The web-accessible location of the controlled vocabulary from which the value of glyph.name or glyph.num is taken. Value conforms to data.URI.
Facsimile component declarations.
facs(optional)Permits the current element to reference a facsimile surface or image zone which corresponds to it. One or more values from data.URI, separated by spaces.
Gestural component declarations.
dots.ges(optional)Number of dots required for a gestural duration when different from that of the written duration. Value conforms to data.AUGMENTDOT.
dur.ges(optional)Records performed duration information that differs from the written duration. Value conforms to data.DURATION.gestural.
dur.metrical(optional)Duration as a count of units provided in the time signature denominator. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.ppq(optional)Duration recorded as pulses-per-quarter note, e.g. MIDI clicks or MusicXML divisions. Value of datatype nonNegativeInteger.
dur.real(optional)Duration in seconds, e.g. '1.732'. Value of datatype a decimal number matching the pattern "\d+(\.\d+)?" .
dur.recip(optional)Duration as an optionally dotted Humdrum *recip value. Value of datatype a string matching the following regular expression: "\d+(\.)*" .
tstamp.ges(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
tstamp.real(optional)Records the onset time in terms of ISO time. Value conforms to data.ISOTIME.
Component declarations that are shared between two or more modules.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
color(optional)Used to indicate visual appearance. Do not confuse this with the musical term 'color' as used in pre-CMN notation. Value conforms to data.COLOR.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
fontfam(optional)Contains the name of a font-family. Value conforms to data.FONTFAMILY.
fontname(optional)Holds the name of a font. Value conforms to data.FONTNAME.
fontsize(optional)Indicates the size of a font expressed in printers' points, i.e., 1/72nd of an inch, relative terms, e.g., "small", "larger", etc., or percentage values relative to "normal" size, e.g., "125%". Value conforms to data.FONTSIZE.
fontstyle(optional)Records the style of a font, i.e, italic, oblique, or normal. Value conforms to data.FONTSTYLE.
fontweight(optional)Used to indicate bold type. Value conforms to data.FONTWEIGHT.
ho(optional)Records a horizontal adjustment to a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value of datatype string.
layer(optional)Identifies the layer to which a feature applies. One or more values of datatype positiveInteger, separated by spaces.
loc(optional)Holds the staff location of the feature. Value conforms to data.STAFFLOC.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
oloc(optional)Records staff location in terms of written octave. Value conforms to data.OCTAVE.
part(optional)Indicates the part in which the current feature should appear. Use '%all' when the feature should occur in every part. One or more values of datatype a string matching the following regular expression: "(%all|#[\i][\c]+)" , separated by spaces.
partstaff(optional)Signifies the part staff on which a notated feature occurs. Use '%all' when the feature should occur on every staff. One or more values of datatype a string matching the following regular expression: "(%all|\d+(-\d+)?)" , separated by spaces.
place(optional)Captures the placement of the item with respect to the staff with which it is associated. Value conforms to data.STAFFREL.
ploc(optional)Captures staff location in terms of written pitch name. Value conforms to data.PITCHNAME.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
staff(recommended)Signifies the staff on which a notated event occurs or to which a control event applies. Mandatory when applicable. One or more values of datatype positiveInteger, separated by spaces.
startid(optional)Holds a reference to the first element in a sequence of events to which the feature applies. Value conforms to data.URI.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
to(optional)Records a timestamp adjustment of a feature's programmatically-determined location in terms of musical time; that is, beats. Value conforms to data.TSTAMPOFFSET.
tstamp(optional)Encodes the onset time in terms of musical time, i.e., beats[.fractional beat part], as expressed in the written time signature. Value conforms to data.BEAT.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
vo(optional)Records the vertical adjustment of a feature's programmatically-determined location in terms of staff interline distance; that is, in units of 1/2 the distance between adjacent staff lines. Value conforms to data.MEASUREMENTREL.
x(optional)Encodes an x coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value of datatype ID.
y(optional)Encodes a y coordinate for a feature in an output coordinate system. When it is necessary to record the placement of a feature in a facsimile image, use the facs attribute. Value of datatype decimal.
User-defined symbols component declarations.
altsym(optional)Provides a way of pointing to a user-defined symbol. It must contain a reference to an ID of a symbolDef element elsewhere in the document. Value conforms to data.URI.
Member of
model.controlEventLikeGroups elements, such as dynamics, ties, phrase marks, pedal marks, etc., which depend upon other events, such as notes or rests, for their existence.
Contained by
(MEI.shared) Groups elements, such as dynamics, ties, phrase marks, pedal marks, etc., which depend upon other events, such as notes or rests, for their existence.
(MEI.cmn) Groups elements that may appear within a CMN measure.
measureUnit of musical time consisting of a fixed number of note values of a given type, as determined by the prevailing meter, and delimited in musical notation by bar lines.
(MEI.critapp) Groups elements that may appear as part of a musical variant.
(MEI.critapp) Groups elements that may appear as part of a textual or musical variant.
lem(lemma) – Contains the lemma, or base text, of a textual variation.
rdg(reading) – Contains a single reading within a textual variation.
(MEI.edittrans) Groups elements that may appear as part of editorial and transcription elements in music notation.
(MEI.edittrans) Groups elements that may appear as part of editorial and transcription elements.
abbr(abbreviation) – A generic element for 1) a shortened form of a word, including an acronym or 2) a shorthand notation.
add(addition) – Marks an addition to the text.
corr(correction) – Contains the correct form of an apparent erroneous passage.
damageContains an area of damage to the physical medium.
del(deletion) – Contains information deleted, marked as deleted, or otherwise indicated as superfluous or spurious in the copy text by an author, scribe, annotator, or corrector.
expan(expansion) – Contains the expansion of an abbreviation.
orig(original) – Contains material which is marked as following the original, rather than being normalized or corrected.
reg(regularization) – Contains material which has been regularized or normalized in some sense.
restoreIndicates restoration of material to an earlier state by cancellation of an editorial or authorial marking or instruction.
sicContains apparently incorrect or inaccurate material.
suppliedContains material supplied by the transcriber or editor for any reason.
unclearContains material that cannot be transcribed with certainty because it is illegible or inaudible in the source.
(MEI.mensural) Groups elements that are components of a staff in the mensural repertoire.
(MEI.shared) Groups elements that are components of a staff in the mensural and neume repertoires.
(MEI.shared) Groups elements that are components of a staff.
oStaff(ossia staff) – A staff that holds an alternative passage which may be played instead of the original material.
staffA group of equidistant horizontal lines on which notes are placed in order to represent pitch or a grouping element for individual 'strands' of notes, rests, etc. that may or may not actually be rendered on staff lines; that is, both diastematic and non-diastematic signs.
(MEI.neumes) Groups elements that may appear as part of the content of a syllable.
syllableNeume notation can be thought of as "neumed text". Therefore, the syllable element provides high-level organization in this repertoire.
Common Music Notation (CMN) repertoire component declarations.
measureUnit of musical time consisting of a fixed number of note values of a given type, as determined by the prevailing meter, and delimited in musical notation by bar lines.
oStaff(ossia staff) – A staff that holds an alternative passage which may be played instead of the original material.
Critical apparatus component declarations.
lem(lemma) – Contains the lemma, or base text, of a textual variation.
rdg(reading) – Contains a single reading within a textual variation.
Editorial and transcriptional component declarations.
abbr(abbreviation) – A generic element for 1) a shortened form of a word, including an acronym or 2) a shorthand notation.
add(addition) – Marks an addition to the text.
corr(correction) – Contains the correct form of an apparent erroneous passage.
damageContains an area of damage to the physical medium.
del(deletion) – Contains information deleted, marked as deleted, or otherwise indicated as superfluous or spurious in the copy text by an author, scribe, annotator, or corrector.
expan(expansion) – Contains the expansion of an abbreviation.
orig(original) – Contains material which is marked as following the original, rather than being normalized or corrected.
reg(regularization) – Contains material which has been regularized or normalized in some sense.
restoreIndicates restoration of material to an earlier state by cancellation of an editorial or authorial marking or instruction.
sicContains apparently incorrect or inaccurate material.
suppliedContains material supplied by the transcriber or editor for any reason.
unclearContains material that cannot be transcribed with certainty because it is illegible or inaudible in the source.
Neume repertoire component declarations.
syllableNeume notation can be thought of as "neumed text". Therefore, the syllable element provides high-level organization in this repertoire.
Component declarations that are shared between two or more modules.
staffA group of equidistant horizontal lines on which notes are placed in order to represent pitch or a grouping element for individual 'strands' of notes, rests, etc. that may or may not actually be rendered on staff lines; that is, both diastematic and non-diastematic signs.
May Contain
(<caesura> may not have child elements)
Remarks

The caesura often indicates an abrupt interruption in the performance followed by an equally sudden resumption. Its duration is typically shorter than a grand pause (G.P.) or long pause (L.P.), but longer than that indicated by a breath mark. When combined with a fermata a longer silence is usually implied. The starting point of the caesura may be indicated by either a startid, tstamp, tstamp.ges, or tstamp.real attribute. It is a semantic error not to specify a starting point attribute.Unlike the breath mark, a caesura may have a performed duration. Also, while the default value for place on the breath mark is "above", the default value for place for a caesura is "within". Unless indicated by other attributes, a caesura will be rendered as a pair of slanted lines through the top line of the staff.

Constraints
Must have one of the attributes: startid, tstamp, tstamp.ges or tstamp.real.
<sch:rule context="mei:caesura">
<sch:assert test="@startid or @tstamp or @tstamp.ges or @tstamp.real">Must have one of the attributes: startid, tstamp, tstamp.ges or tstamp.real.</sch:assert>
</sch:rule>
Declaration
<elementSpec ident="caesura" module="MEI.shared">
<desc>Break, pause, or interruption in the normal tempo of a composition. Typically indicated by "railroad tracks", i.e., two diagonal slashes.</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.facsimile"/>
<memberOf key="att.caesura.anl"/>
<memberOf key="att.caesura.ges"/>
<memberOf key="att.caesura.log"/>
<memberOf key="att.caesura.vis"/>
<memberOf key="model.controlEventLike"/>
</classes>
<content>
<rng:empty/>
</content>
<constraintSpec ident="caesura_start-type_attributes_required" scheme="isoschematron">
<constraint>
<sch:rule context="mei:caesura">
<sch:assert test="@startid or @tstamp or @tstamp.ges or @tstamp.real">Must have one of the attributes: startid, tstamp, tstamp.ges or tstamp.real.</sch:assert>
</sch:rule>
</constraint>
</constraintSpec>
<remarks>
<p part="N">The caesura often indicates an abrupt interruption in the performance followed by an equally sudden resumption. Its duration is typically shorter than a grand pause (G.P.) or long pause (L.P.), but longer than that indicated by a
<gi scheme="MEI">breath</gi>
mark. When combined with a
<gi scheme="MEI">fermata</gi>
a longer silence is usually implied. The starting point of the caesura may be indicated by either a
<att scheme="TEI">startid</att>
,
<att scheme="TEI">tstamp</att>
,
<att scheme="TEI">tstamp.ges</att>
, or
<att scheme="TEI">tstamp.real</att>
attribute. It is a semantic error not to specify a starting point attribute.</p>
<p part="N">Unlike the
<gi scheme="MEI">breath</gi>
mark, a caesura may have a performed duration. Also, while the default value for
<att scheme="TEI">place</att>
on the breath mark is "above", the default value for
<att scheme="TEI">place</att>
for a caesura is "within". Unless indicated by other attributes, a caesura will be rendered as a pair of slanted lines through the top line of the staff.</p>
<p part="N"/>
</remarks>
</elementSpec>