A vocal performance with no instrumental accompaniment.
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.
Singing solely or mainly without instrumental accompaniment.
Related to a form of purely vocal music mostly associated with American college performance groups.
The act of using the voice to produce musical sounds; vocalizing.
A gathering for the purpose of singing shape note songs.
Disclosing information, or giving evidence about another.
Producing a whistling sound due to the escape of steam.
Smooth and flowing.