New in version 2.0.
Get annotations attached to component:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> marktools.Annotation('annotation 1')(staff[0])
Annotation('annotation 1')(c'8)
abjad> marktools.Annotation('annotation 2')(staff[0])
Annotation('annotation 2')(c'8)
abjad> f(staff)
\new Staff {
c'8
d'8
e'8
f'8
}
abjad> marktools.get_annotations_attached_to_component(staff[0])
(Annotation('annotation 1')(c'8), Annotation('annotation 2')(c'8))
Return tuple of zero or more annotations.