New in version 2.0.
Get first score in proper parentage of component:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> score = Score([staff])
abjad> f(score)
\new Score <<
\new Staff {
c'8
d'8
e'8
f'8
}
>>
abjad> scoretools.get_first_score_in_proper_parentage_of_component(score.leaves[0])
Score<<1>>
Return score or none.