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.
A vocal performance with no instrumental accompaniment.
In a single or unaccompanied manner; without a companion.
Honestly; sincerely; simply.
Individually; particularly; severally.
Without partners, companions, or associates; single-handed.