Introduction
============


Abjad publishes information about many durated score objects.

Notes, rests, chords and skips carry some duration attributes:

<abjad>
note = Note(0, (3, 16))
measure = Measure((3, 16), [note])
staff = stafftools.RhythmicStaff([measure])
</abjad>

<abjad>
show(staff, docs=True)
</abjad>

<abjad>
note.written_duration
</abjad>

Tuplets, measures, voices, staves and the other containers carry duration attributes, too:

<abjad>
tuplet = tuplettools.FixedDurationTuplet(Duration(3, 16), "c'16 c' c' c' c'")
measure = Measure((3, 16), [tuplet])
staff = stafftools.RhythmicStaff([measure])
</abjad>

<abjad>
show(staff, docs=True)
</abjad>

<abjad>
tuplet.multiplier
</abjad>

The next chapters document core duration concepts in Abjad.
