A vocal performance with no instrumental accompaniment.
Singing solely or mainly without instrumental accompaniment.
Related to a form of purely vocal music mostly associated with American college performance groups.
In a manner of a choir with no instrumental accompaniment; literally, "in the style of the (Sistine) Chapel (in Rome)", such as a musical Mass done a cappella.
The after song; the part of a lyric ode which follows the strophe and antistrophe.
A kind of lyric poem, invented by Archilochus, in which a longer verse is followed by a shorter one.