Assertion: cello's instrument | /r/HasProperty | useful
Facets:
value: during ballads
type: TEMPORAL
value: particularly
type: DEGREE
value: for accompaniment
type: PURPOSE
value: for melodic solos with held notes
type: PURPOSE
Source sentences:
text: In addition, the use of an amplifier can increase the sustain of the instrument, which is particularly useful for accompaniment during ballads and for melodic solos with held notes.