New in version 2.0.
Make empty pitch array from leaf_iterables:
abjad> from abjad.tools import pitcharraytools
abjad> score = Score([])
abjad> score.append(Staff("c'8 d'8 e'8 f'8"))
abjad> score.append(Staff("c'4 d'4"))
abjad> score.append(Staff(tuplettools.FixedDurationTuplet(Duration(2, 8), "c'8 d'8 e'8") * 2))
abjad> f(score)
\new Score <<
\new Staff {
c'8
d'8
e'8
f'8
}
\new Staff {
c'4
d'4
}
\new Staff {
\times 2/3 {
c'8
d'8
e'8
}
\times 2/3 {
c'8
d'8
e'8
}
}
>>
abjad> array = pitcharraytools.make_empty_pitch_array_from_list_of_pitch_lists(score)
abjad> print array
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Return pitch array.