Abjad publishes information about many durated score objects.
Notes, rests, chords and skips carry some duration attributes.
abjad> note = Note(0, (3, 16))
abjad> measure = RigidMeasure((3, 16), [note])
abjad> staff = RhythmicStaff([measure])
abjad> print note.duration.written
3/16
Tuplets, measures, voices, staves and the other containers carry even more.
abjad> tuplet = FixedDurationTuplet((3, 16), Note(0, (1, 16)) * 5)
abjad> measure = RigidMeasure((3, 16), [tuplet])
abjad> staff = RhythmicStaff([measure])
abjad> print tuplet.duration.multiplier
3/5
The next chapters document duration in Abjad and explain core duration concepts.