二に部ぶ合がっ奏そうにぶがっそうMeanings1nouninstrumental duet; two-part ensembleRefers to a musical performance or piece for two instrumental parts, often in a classical or ensemble context.次つぎの演えん奏そう会かいでは、バイオリンとチェロの二に部ぶ合がっ奏そうを披ひ露