As you practice piano sometimes two hours a day how about just adding 20 minutes a day on replicating a drum track or groove ?
We always make time for the things we really want . I have never seen that rule broken .
It's my firm belief that if you practice (any instrument) for just the "two hours," and you're doing it correctly, focusing, concentrating, then at the end of that two hour session you'd have to be put on an oxygen tank!
I don't believe practicing is doing finger exercises over and over again. It's about creativity and "creativity" is another word for "mind fatigue." Creativity example: take any song and play it in 100 different arrangements...or play it in a different key, or figure substitute chords, etc
So adding 20 minutes to my two hours would be the "death knell" for me. I'm not drained physically, but "mentally!" I just about fall on the floor when I'm done.
Good thought though, Spalding.
Are they still using live musicians over there in the working men's clubs? One man bands? DJ's? Nothing? The "cabaret" shows in the East End pubs were great breeding grounds for musicians!