Opus
01
作品, オーパス
a musical piece or collection that is written by a famous composer followed by the date in which it was created
例
Rachmaninoff's " Piano Concerto No. 2, Opus 18 " was completed in 1901.
ラフマニノフの『ピアノ協奏曲第2番、Opus 18』は1901年に完成しました。



























