Donny we know you are in the top 10 vocalist here..
Singing to a great commercial track is not a fair comparison to Jim's video .. playing spontaneously in real time on an arranger keyboard..

He is showing his playing technic.. You need to think like a harmonica player (even as a one finger player to achieve realistic sound.)

I think you should do a live recording on the Genos, and let us see what it has to offer.

BTW: I notice Jim is using those black keys too