noun
songwriting (words and music)
Refers to the act of composing both the lyrics and the melody of a song, often used in credits or descriptions of a musician's role.
彼はその曲の作詞作曲を手がけた。
He wrote the lyrics and music for that song.
作詞作曲はすべて本人によるものだ。
All the songwriting (lyrics and music) is done by the artist themselves.
Refers only to composing music, not the lyrics.
Compound of 作詞 (writing lyrics) and 作曲 (composing music).