<beam>

A container for a series of explicitly beamed events that begins and ends entirely within a measure.
4.3.1 Beams,4.3.4 Tuplets
Module
MEI.cmn
Attributes
beam.with, class, color, copyof, corresp, cue, facs, follows, form, label, layer, n, next, place, precedes, prev, resp, sameas, slash, slope, staff, synch, tstamp, tstamp.ges, tstamp.real, type, when, xml:base, xml:id
beam.with(optional)In the case of cross-staff beams, the beam.with attribute is used to indicate which staff the beam is connected to; that is, the staff above or the staff below. Value conforms to data.OTHERSTAFF.
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.
cue(optional) Value conforms to data.BOOLEAN.
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.
form(optional)Captures whether a beam is "feathered" and in which direction. Allowed values are: "acc" ((accelerando) indicates that the secondary beams get progressively closer together toward the end of the beam.), "mixed" ((mixed acc and rit) for beams that are "feathered" in both directions.), "rit" ((ritardando) means that the secondary beams become progressively more distant toward the end of the beam.), "norm" ((normal) indicates that the secondary beams are equidistant along the course of the beam.)
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.
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.
place(optional)Records the placement of the beam relative to the events it affects. Value conforms to data.BEAMPLACE.
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.
slash(optional)Indicates presence of slash through the beam. Value conforms to data.BOOLEAN.
slope(optional)Records the slope of the beam. Value of datatype decimal.
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.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
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.
when(optional)Indicates the point of occurrence of this feature along a time line. Its value must be the ID of a when element elsewhere in the document. Value conforms to data.URI.
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.
(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.cmn) Logical domain attributes.
(MEI.shared) Attributes that apply to all written events, e.g., note, chord, rest, etc.
(MEI.performance) Temporal alignment attributes.
when(optional)Indicates the point of occurrence of this feature along a time line. Its value must be the ID of a when element elsewhere in the document. Value conforms to data.URI.
(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 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.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) 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.cmn) Attributes indicating cross-staff beaming.
beam.with(optional)In the case of cross-staff beams, the beam.with attribute is used to indicate which staff the beam is connected to; that is, the staff above or the staff below. Value conforms to data.OTHERSTAFF.
(MEI.visual) Visual domain attributes.
(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.shared) Attributes that describe "cue-ness".
cue(optional) Value conforms to data.BOOLEAN.
(MEI.cmn) Attributes that record the visual rendition of beams.
form(optional)Captures whether a beam is "feathered" and in which direction. Allowed values are: "acc" ((accelerando) indicates that the secondary beams get progressively closer together toward the end of the beam.), "mixed" ((mixed acc and rit) for beams that are "feathered" in both directions.), "rit" ((ritardando) means that the secondary beams become progressively more distant toward the end of the beam.), "norm" ((normal) indicates that the secondary beams are equidistant along the course of the beam.)
place(optional)Records the placement of the beam relative to the events it affects. Value conforms to data.BEAMPLACE.
slash(optional)Indicates presence of slash through the beam. Value conforms to data.BOOLEAN.
slope(optional)Records the slope of the beam. Value of datatype decimal.
(MEI.gestural) Gestural domain attributes.
(MEI.analytical) Analytical domain attributes.
Common Music Notation (CMN) repertoire component declarations.
beam.with(optional)In the case of cross-staff beams, the beam.with attribute is used to indicate which staff the beam is connected to; that is, the staff above or the staff below. Value conforms to data.OTHERSTAFF.
form(optional)Captures whether a beam is "feathered" and in which direction. Allowed values are: "acc" ((accelerando) indicates that the secondary beams get progressively closer together toward the end of the beam.), "mixed" ((mixed acc and rit) for beams that are "feathered" in both directions.), "rit" ((ritardando) means that the secondary beams become progressively more distant toward the end of the beam.), "norm" ((normal) indicates that the secondary beams are equidistant along the course of the beam.)
place(optional)Records the placement of the beam relative to the events it affects. Value conforms to data.BEAMPLACE.
slash(optional)Indicates presence of slash through the beam. Value conforms to data.BOOLEAN.
slope(optional)Records the slope of the beam. Value of datatype decimal.
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.
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.
Performance component declarations.
when(optional)Indicates the point of occurrence of this feature along a time line. Its value must be the ID of a when element elsewhere in the document. Value conforms to data.URI.
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.
cue(optional) Value conforms to data.BOOLEAN.
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.
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.
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.
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.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
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.
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.
Member of
model.eventLike.cmnGroups events that appear in CMN.
Contained by
(MEI.cmn) Groups events that appear in CMN.
beamA container for a series of explicitly beamed events that begins and ends entirely within a measure.
graceGrpA container for a sequence of grace notes.
tupletA group of notes with "irregular" (sometimes called "irrational") rhythmic values, for example, three notes in the time normally occupied by two or nine in the time of five.
(MEI.cmn) Groups notated events that may appear at the layer level in CMN.
(MEI.shared) Groups notated events that may appear at the layer level in all repertoires.
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.
layerAn independent stream of events on a staff.
lem(lemma) – Contains the lemma, or base text, of a textual variation.
oLayer(ossia layer) – A layer that contains an alternative to material in another layer.
orig(original) – Contains material which is marked as following the original, rather than being normalized or corrected.
rdg(reading) – Contains a single reading within a textual variation.
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.
Common Music Notation (CMN) repertoire component declarations.
beamA container for a series of explicitly beamed events that begins and ends entirely within a measure.
graceGrpA container for a sequence of grace notes.
oLayer(ossia layer) – A layer that contains an alternative to material in another layer.
tupletA group of notes with "irregular" (sometimes called "irrational") rhythmic values, for example, three notes in the time normally occupied by two or nine in the time of five.
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.
Component declarations that are shared between two or more modules.
layerAn independent stream of events on a staff.
May Contain
(MEI.cmn) Groups events that appear in CMN.
bTrem(bowed tremolo) – A rapid alternation on a single pitch or chord.
beamA container for a series of explicitly beamed events that begins and ends entirely within a measure.
beatRpt(beat repeat) – An indication that material on a preceding beat should be repeated.
fTrem(fingered tremolo) – A rapid alternation between a pair of notes (or chords or perhaps between a note and a chord) that are (usually) farther apart than a major second.
graceGrpA container for a sequence of grace notes.
halfmRpt(half-measure repeat) – A half-measure repeat in any meter.
tupletA group of notes with "irregular" (sometimes called "irrational") rhythmic values, for example, three notes in the time normally occupied by two or nine in the time of five.
(MEI.critapp) Groups elements that contain a critical apparatus entry.
app(apparatus) – Contains one or more alternative encodings.
(MEI.edittrans) Groups elements for editorial interventions that may be useful both in transcribing and in authoring processes.
choiceGroups a number of alternative encodings for the same point in a text.
subst(substitution) – Groups transcriptional elements when the combination is to be regarded as a single intervention in the text.
(MEI.edittrans) Groups elements used for editorial transcription of pre-existing source materials.
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.
gapIndicates a point where material has been omitted in a transcription, whether as part of sampling practice or for editorial reasons described in the MEI header.
handShiftMarks the beginning of a passage written in a new hand, or of a change in the scribe, writing style, ink or character of the document hand.
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.shared) Groups event elements that occur in all notational repertoires.
barLineVertical line drawn through one or more staves that divides musical notation into metrical units.
chordA simultaneous sounding of two or more notes in the same layer *with the same duration*.
clefIndication of the exact location of a particular note on the staff and, therefore, the other notes as well.
clefGrp(clef group) – A set of simultaneously-occurring clefs.
custosSymbol placed at the end of a line of music to indicate the first note of the next line. Sometimes called a "direct".
noteA single pitched event.
pad(padding) – An indication of extra visual space between notational elements.
restA non-sounding event found in the source being transcribed.
spaceA placeholder used to fill an incomplete measure, layer, etc. most often so that the combined duration of the events equals the number of beats in the measure.
(MEI.shared) Groups elements that have the same function as a key signature.
keySig(key signature) – Written key signature.
(MEI.shared) Groups elements that represent a meter signature.
meterSig(meter signature) – Written meter signature.
meterSigGrp(meter signature group) – Used to capture alternating, interchanging, and mixed meter signatures.
Common Music Notation (CMN) repertoire component declarations.
bTrem(bowed tremolo) – A rapid alternation on a single pitch or chord.
beamA container for a series of explicitly beamed events that begins and ends entirely within a measure.
beatRpt(beat repeat) – An indication that material on a preceding beat should be repeated.
fTrem(fingered tremolo) – A rapid alternation between a pair of notes (or chords or perhaps between a note and a chord) that are (usually) farther apart than a major second.
graceGrpA container for a sequence of grace notes.
halfmRpt(half-measure repeat) – A half-measure repeat in any meter.
meterSig(meter signature) – Written meter signature.
meterSigGrp(meter signature group) – Used to capture alternating, interchanging, and mixed meter signatures.
tupletA group of notes with "irregular" (sometimes called "irrational") rhythmic values, for example, three notes in the time normally occupied by two or nine in the time of five.
Critical apparatus component declarations.
app(apparatus) – Contains one or more alternative encodings.
Editorial and transcriptional component declarations.
add(addition) – Marks an addition to the text.
choiceGroups a number of alternative encodings for the same point in a 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.
gapIndicates a point where material has been omitted in a transcription, whether as part of sampling practice or for editorial reasons described in the MEI header.
handShiftMarks the beginning of a passage written in a new hand, or of a change in the scribe, writing style, ink or character of the document hand.
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.
subst(substitution) – Groups transcriptional elements when the combination is to be regarded as a single intervention in the text.
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.
Component declarations that are shared between two or more modules.
barLineVertical line drawn through one or more staves that divides musical notation into metrical units.
chordA simultaneous sounding of two or more notes in the same layer *with the same duration*.
clefIndication of the exact location of a particular note on the staff and, therefore, the other notes as well.
clefGrp(clef group) – A set of simultaneously-occurring clefs.
custosSymbol placed at the end of a line of music to indicate the first note of the next line. Sometimes called a "direct".
keySig(key signature) – Written key signature.
noteA single pitched event.
pad(padding) – An indication of extra visual space between notational elements.
restA non-sounding event found in the source being transcribed.
spaceA placeholder used to fill an incomplete measure, layer, etc. most often so that the combined duration of the events equals the number of beats in the measure.
Remarks

For beams that cross the bar line, use the beamSpan element. Secondary beams may be broken explicitly using the breaksec attribute on the notes or chords under the beam. Automated beaming, as opposed to explicitly marked beams, may be indicated for an entire score, part or section by using the beam.group and beam.rests attributes on these elements.

Constraints
A beam without a copyof attribute must have at least 2 note, rest, chord, or space descendants.
<sch:rule context="mei:beam[not(@copyof)]">
<sch:assert test="count(descendant::*[local-name()='note' or local-name()='rest' or local-name()='chord' or local-name()='space']) > 1">A beam without a copyof attribute must have at least 2 note, rest, chord, or space descendants.</sch:assert>
</sch:rule>
Declaration
<elementSpec ident="beam" module="MEI.cmn">
<desc>A container for a series of explicitly beamed events that begins and ends entirely within a measure.</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.facsimile"/>
<memberOf key="att.beam.log"/>
<memberOf key="att.beam.vis"/>
<memberOf key="att.beam.ges"/>
<memberOf key="att.beam.anl"/>
<memberOf key="model.eventLike.cmn"/>
</classes>
<content>
<rng:zeroOrMore>
<rng:choice>
<rng:ref name="model.eventLike" />
<rng:ref name="model.eventLike.cmn" />
<rng:ref name="model.appLike" />
<rng:ref name="model.editLike" />
<rng:ref name="model.transcriptionLike" />
</rng:choice>
</rng:zeroOrMore>
</content>
<constraintSpec ident="When_not_copyof_beam_content" scheme="isoschematron">
<constraint>
<sch:rule context="mei:beam[not(@copyof)]">
<sch:assert test="count(descendant::*[local-name()='note' or local-name()='rest' or local-name()='chord' or local-name()='space']) > 1">A beam without a copyof attribute must have at least 2 note, rest, chord, or space descendants.</sch:assert>
</sch:rule>
</constraint>
</constraintSpec>
<remarks>
<p part="N">For beams that cross the bar line, use the
<gi scheme="MEI">beamSpan</gi>
element. Secondary beams may be broken explicitly using the
<att scheme="TEI">breaksec</att>
attribute on the notes or chords under the beam. Automated beaming, as opposed to explicitly marked beams, may be indicated for an entire score, part or section by using the
<att scheme="TEI">beam.group</att>
and
<att scheme="TEI">beam.rests</att>
attributes on these elements.</p>
</remarks>
</elementSpec>