leaftools.get_leaf_at_index_in_measure_number_in_expr

abjad.tools.leaftools.get_leaf_at_index_in_measure_number_in_expr.get_leaf_at_index_in_measure_number_in_expr(expr, measure_number, leaf_index)

New in version 2.0.

Get leaf at leaf_index in measure_number in expr:

abjad> t = Staff(Measure((2, 8), notetools.make_repeated_notes(2)) * 3)
abjad> pitchtools.set_ascending_named_diatonic_pitches_on_nontied_pitched_components_in_expr(t)
abjad> f(t)
\new Staff {
    {
        \time 2/8
        c'8
        d'8
    }
    {
        \time 2/8
        e'8
        f'8
    }
    {
        \time 2/8
        g'8
        a'8
    }
}

abjad> leaftools.get_leaf_at_index_in_measure_number_in_expr(t, 2, 0)
Note("e'8")

Return leaf or none.