The sequence object

Type: Dictionary

The sequence object organizes a set of musical events within a measure into a strict temporal sequence, accompanied by relevant directions.

To determine the measure position of each event within a sequence, you sequence the content, with a starting position 0 and time modification ratio 1.

The content within each sequence supplies the music for a single polyphonic voice within its containing measure, including notes, chords, rests, tuplets and grace notes.

Keys:

Name	Type	Required?	Description
"content"	An array of event objects, grace objects, tuplet objects, ottava objects, space objects, dynamic objects	Yes
"orient"	orientation object	No	The default orientation of the content in this sequence. If not provided, the orientation is determined automatically according to the implementation’s rendering rules and may be overridden by descendant elements.
"staff"	staff number object	No	The default staff index of the content in this sequence. If not provided, the orientation is determined automatically according to the implementation’s rendering rules and may be overridden by descendant elements.
"voice"	voice name object	No	A string that identifies the voice to which this sequence belongs. All sequences in a given part having the same value of "voice" belong to the same voice. Within a given measure, no two sequences may share the same value for voice. The value of voice is an opaque identifier that does not supply information from producers to consumers.

Examples

This object is used in the following examples:

Accidentals, Articulations, Beams, Beams (across barlines), Beams (hooks), Beams (secondary beam breaks), Beams (with inner grace notes), Clef changes, Dotted notes (augmentation dots), Grace note, Grace notes (beamed), Grand staff piano music, Jumps (D.S. al Fine), Jumps (Dal Segno), Key signatures, Lyric line metadata, Lyrics (basic), Lyrics (multi-line), Multimeasure rests, Multiple layouts, Multiple voices, Organ layout, Ottavas (8va), Parts, Repeats, Repeats (more than once repeated), Repeats (with alternate endings, advanced), Repeats (with alternate endings, simple), Repeats (with implied start repeat), Rest positions, Slurs, Slurs (for chords), Slurs (incomplete slurs), Slurs (targeting specific notes), Styling elements (basic), Styling via a class (basic), Tempo markings, Three-note chord and half rest, Ties, Time signatures, Tremolos (single-note), Tuplets, Two-bar C major scale, “Hello world”