Common Music Notation (CMN) repertoire component declarations.
beamA container for a series of explicitly beamed events that begins and ends entirely
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,
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
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
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
restoreIndicates restoration of material to an earlier state by cancellation of an editorial
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
inaudible in the source.
Component declarations that are shared between two or more modules.
layerAn independent stream of events on a staff.