What is "scat singing"

n. (context music jazz English) The act of vocalizing, using nonsense syllables or sounds (e.g. "dool-yuh doot-n dwee-dah") to create an improvised melodic solo, often imitative of other musical instruments.

n. singing jazz; the singer substitutes nonsense syllables for the words of the song and tries to sound like a musical instrument [syn: scat]

In vocal jazz, scat singing is vocal improvisation with wordless vocables, nonsense syllables or without words at all. Scat singing is a difficult technique that requires singers with the ability to sing improvised melodies and rhythms using the voice as an instrument rather than a speaking medium.