I don't think that you understood what I was referring to (gotta love those homonyms- "to" and "too" are different things, lol).
Here is my point: If you are able to play (and maybe articulate with your mouth) a specific pattern on the piano/organ/keyboard/bass guitar/lead guitar, etc., you should be able to do better than stating that you're terrible with drum rhythms. I'm pretty sure that you don't play all willy nilly on your instrument, you know, playing sloppy patterns - even then, that sloppy pattern is still a rhythm.
I'll restate it: The only difference is melody (if you're only referring to the non-definite pitched drum - yeah, that's a whole different topic, though).
It's as easy as that - rhythm is rhythm. Bottom line.