noun
vocal music piece
Refers to a musical composition written for voice(s), such as a song, aria, or choral work.
彼女は新しい声楽曲を練習している。
She is practicing a new vocal piece.
器楽曲 is an instrumental piece, while 声楽曲 is a vocal piece.
Compound of 声楽 (vocal music) and 曲 (piece of music).