名詞 obbligato:

1. a persistent but subordinate motif
   同義詞：obligato
2. a part of the score that must be performed without change or omission
   同義詞：obligato

obbligato 也作 ob.li.ga.to

adj.（形容詞）
Not to be left out; indispensable. Used of an accompaniment that is an integral part of a piece.
不可少的，助奏的：不可缺的；必不可少的。用作曲子不可少的伴奏
n.（名詞）
【復(fù)數(shù)】 ob.bli.ga.tos 或 ob.bli.ga.ti [-tô]
An obbligato accompaniment.
助奏：必需的伴奏

來(lái)源：
Italian [past participle of] obbligare [to obligate]
意大利語(yǔ) [] obbligare的過(guò)去分詞 [使負(fù)有義務(wù)]
from Latin oblig3re [to oblige] * see oblige
源自 拉丁語(yǔ) oblig3re [強(qiáng)迫] *參見(jiàn) oblige