Sometimes I sit down to sketch at the unearthly hour of 3 in the morning!
Do what you love. Know your own bone gnaw at it bury it unearth it and gnaw it still.
I am an obsessive garage cleaner - my wife and the neighbors make fun of me. I remember that my father was the same way and now when I'm out there unearthing things in the garage I realize I am becoming my dad!
In rap music even though the element of poetry is very strong so is the element of the drum the implication of the dance. Without the beat its commercial value would certainly be more tenuous.