Astyle of singing in which the vocalist sings nonsense syllables is called a. dadaism. b. scat. c. leitmotif. d. field holler.

Scat. It's a form of jazz expression where the singer is almost imitating a musical instrument's improvisational solo (a solo which is created on the spot). See: https://youtu.be/2xoSFyqW7JI

A style of singing in which the vocalist stings nonsense syllables is called a scat so B

Idon’t think it’s true but if it is then you should make up a case then prove it