song title; name of a piece of music
Refers to the title of any musical composition, from classical pieces to pop songs.
Please tell me the title of this song.
I don't know the title of the song that was just playing.
彼は曲名を忘れてしまった。
He forgot the name of the piece.
I looked up the song title using an app.
Please tell me the title of this song.
曲目 refers to a piece in a program or list of pieces, whereas 曲名 is simply the name of a single piece.
Compound of 曲 (きょく, 'musical piece') and 名 (めい, 'name').