I've been playing instruments for 40 years, so here's one last word from me on this topic.

Your body and brain are an intricate, intermeshed system. If you play a piece repeatedly and you stamp your foot, play a drum, or add a bass line, you will probably find that after a while you cannot play it without the embellishment.

Oh, it's easy to say, "Hey, this is just recreational stomping, and I can quit anytime I feel like it." But actually, you can't. You will find that one part of your body has come to rely on another to cue it as to what comes next. As I said, it's all intermeshed.

So as you work up new pieces, ask yourself, "Do I want to do it this way all the time and everywhere?" Because you may find that certain parts of the piece have become "glued together" without you being aware of it.