Music: I'm not good at poetic use of language. I come up with utter drivel half the time.
When it comes to the music, it depends. If I'm at the keyboard, it tends to be chord sequences, if it's on the bass, it's usually a riff. If I'm jamming with a friend of mine, it's always riffs, because for that, I'm on the bass pretty much exclusively.
That said, I do have a habit of putting in some quite chordy riffs, as I just tend to play like that if left with a bass and some time.