noun
singing accompanied by string instruments; vocal and string music
Refers to the combination of singing and string music, often in a traditional or classical context. The term is somewhat literary and not an everyday word.
彼は宴席で弦歌を披露した。
He performed a song with string accompaniment at the banquet.
管弦 refers to wind and string instruments together, often in an orchestral context, while 弦歌 specifically pairs singing with string music.
Compound of 弦 (string) and 歌 (song/singing). The exact historical derivation is uncertain, but the term has been used in classical Chinese and Japanese literature to describe musical performances combining voice and string instruments.