Split container in two just before index i.
Example. Split binary measure and leave spanners in tact:
abjad> t = Voice(RigidMeasure((3, 8), construct.run(3)) * 2)
abjad> pitchtools.diatonicize(t)
abjad> p = Beam(t[:])
abjad> print t.format
\new Voice {
\time 3/8
c'8 [
d'8
e'8
\time 3/8
f'8
g'8
a'8 ]
}
abjad> split.container_unfractured(t[1], 1)
abjad> print t.format
\new Voice {
\time 3/8
c'8 [
d'8
e'8
\time 1/8
f'8
\time 2/8
g'8
a'8 ]
}
See also: