On CTK-6200 when you want to edit a rhythm, the only thing that you can do is to change the instruments,and then using the mixer to modify the sound of the instrument. There is not any way that you can create your own new pattern, and replace it with present beats as a new user style.I wonder if you can create your own rhythms on this keyboard, meaning adding some melodies, or grooves of your own to create a user rhythm. It seems the rhythm is what it is.