can you help direct me to some musicians/groups/songs that have ......?

Question

a jazz type music using a lot of double bass, peppy and upbeat singing.

thanks

and some good piano

Answer 1

Though they are classed as an "alternative" or "pop" band, Ben Folds Five could be quite jazzy at times. I can picture Ben Folds, years from now, writing Broadway musicals. His songs have characters...and stories. Great musicianship in the three-pice Ben Folds Five.