A song is a relatively short musical composition
for the human voice (possibly accompanied by other musical instruments),
which features words (lyrics). It is typically for a solo singer, though
may also be a duet, trio, or for more voices (works with more than one
voice to a part, however, are considered choral). The words of songs are
typically of a poetic, rhyming nature, although they may be religious
verses or free prose. ...