Wish it was just the fingerbanger or whatever without the other noises. Hard to tell but I can't see any advantages over a keyboard, and by extension a keytar and/or piano/keyano, so why invent this?
"Hard to tell but I can't see any advantages over a keyboard, and by extension a keytar and/or piano/keyano, so why invent this?" is a good stock response to pretty much any demo of anything.