split out of #23 :
like existing legacy patch by Aaron, bur using camu.* abstractions
feaatures: live control, live recording, keymixer
question: include targ. transposition, but this would need bach.!
--> make a dumber version with kslider/noteslider
split out of #23 : like existing legacy patch by Aaron, bur using camu.* abstractions feaatures: live control, live recording, keymixer question: include targ. transposition, but this would need bach.! --> make a dumber version with kslider/noteslider