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.
A sound produced by the vocal cords with relatively little restriction of the oral cavity, forming the prominent sound of a syllable.
A letter representing the sound of vowel; in English, the vowels are a, e, i, o, u, and y.
To add vowel points to a consonantal script (e.g. niqqud in Hebrew or harakat in Arabic).