This is the 7939th most frequent Japanese word.
声楽
Vocal music or singing.
声楽 (vocal music) is used as the subject of study in this sentence, referring to the academic discipline.
彼は声楽を学ぶために音楽学校に入学しました。
He enrolled in a music school to study vocal music.
声楽 (vocal music) is used to describe the type of competition in focus.
声楽のコンクールでは彼女の声が際立っていました。
Her voice stood out during the vocal music competition.
声楽 (vocal music) here indicates the genre being performed and promoted.