New in version 1.1.
True when component is well formed:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> spannertools.BeamSpanner(staff[:])
BeamSpanner(c'8, d'8, e'8, f'8)
abjad> componenttools.is_well_formed_component(staff)
True
Otherwise false:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> staff[1].written_duration = Duration(1, 4)
abjad> spannertools.BeamSpanner(staff[:])
BeamSpanner(c'8, d'4, e'8, f'8)
abjad> componenttools.is_well_formed_component(staff)
False
Beamed quarter notes are not well formed.
Return boolean.