If you're into keyboards, Kurzweil, Korg and Roland all have great vocal libraries in their high end synths. I know there are vocal lib's available for the big name softsynths too.

Here's a live recording I did 7-8 years ago using my Kurzweil PC2X. My vocal scat keyboard solo starts at about 2:50.

https://soundcloud.com/jazzmammal/04-track-4

Bob


Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.