mei:octave

Indicates whether the octave displacement should be performed
simultaneously with the written notes, i.e., "coll' ottava". Unlike other octave signs
which are indicated by broken lines, coll' ottava typically uses an unbroken line or a
series of longer broken lines, ending with a short vertical stroke. See Read, p.
47-48.

Used to indicate visual appearance. Do not confuse this with the musical
term 'color' as used in pre-CMN notation.

Points to an element of which the current element is a
copy.

Used to point to other elements that correspond to this one in a generic
fashion.

Records the amount of octave displacement.

Records the direction of octave displacement.

Records the number of augmentation dots required by a dotted
duration.

Records duration using optionally dotted, relative durational values
provided by the data.DURATION datatype. When the duration is "irrational", as is sometimes
the case with tuplets, multiple space-separated values that add up to the total duration
may be used. When dotted values are present, the dots attribute must be
ignored.

Records performed duration information that differs from the written
duration. Its value may be expressed in several forms; that is, ppq (MIDI clicks and
MusicXML 'divisions'), Humdrum **recip values, beats, seconds, or mensural duration
values.

Records the horizontal adjustment of a feature's
programmatically-determined end point.

Indicates the final element in a sequence of events to which the feature
applies.

Records a timestamp adjustment of a feature's programmatically-determined
end point.

Specifies the intended meaning when a participant in a relationship is
itself a pointer.

Indicates the presence of an extension symbol, typically a
line.

Permits the current element to reference a facsimile surface or image zone
which corresponds to it.

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.

Provides a name or label for an element. The value may be any
string.

Identifies the layer to which a feature applies.

Symbol rendered at end of line.

Holds the relative size of the line-end symbol.

Describes the line style of a line.

Symbol rendered at start of line.

Holds the relative size of the line-start symbol.

Width of a line.

Provides a number-like designation for an element.

Used to point to the next event(s) in a user-defined
collection.

Contains a space separated list of references that identify active
participants in a collection/relationship, such as notes under a phrase mark; that is, the
entities pointed "from".

Points to the previous event(s) in a user-defined
collection.

Points to an element that is the same as the current element but is not a
literal copy of the current element.

Signifies the staff on which a notated event occurs or to which a control
event applies. Mandatory when applicable.

Records the horizontal adjustment of a feature's
programmatically-determined start point.

Holds a reference to the first element in a sequence of events to which
the feature applies.

Records a timestamp adjustment of a feature's programmatically-determined
start point.

Provide any sub-classification for the element, additional to that given
by its type attribute.

Points to elements that are synchronous with the current
element.

Records a timestamp adjustment of a feature's programmatically-determined
location in terms of musical time; that is, beats.

Encodes the onset time in terms of musical time, i.e.,
beats[.fractional_beat_part].

Captures performed onset time in several forms; that is, ppq (MIDI clicks
and MusicXML 'divisions'), Humdrum **recip values, beats, seconds, or mensural duration
values.

Used to record the onset time in terms of ISO time.

Encodes the ending point of an event in terms of musical time, i.e., a
count of measures plus a beat location.

Characterizes the element in some sense, using any convenient
classification scheme or typology.

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.

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.

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.

Provides a base URI reference with which applications can resolve relative
URI references into absolute URI references.

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.

Encodes an 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.