The term scatting refers to a singer who:

a. Changes the form of a song.

b. Leaves the stage to get a drink.

c. Sings neutral or non-sense syllables.

d. Allows the instrumentalists to improvise during a musical break.

The term scatting refers to a singer who sings neutral or non-sense syllables.

Explanation:

Scatting is a form of singing in vocal jazz whereby a singer improvises, invents, or makes up neutral, wordless, or nonsense vocables or syllables by guessing, or using their instinct or imagination, rather than by a careful plan. In scatting, the singer uses their voice as an instrument to create rhythms and melodies, rather than clear and comprehensible words.

1. a type of jazz singing characterized by improvised vocal sounds instead of words. verbWord forms: scats, scatting or scatted.