I can produce basic things
But I am not much of an instrumentalist
I am pretty sure I slayed the bamboo sticks in middle school, though.
And thanks for reminding me that I was writing a song
If I wasn't so cold, I'd work on it.
EDIT: I do once in a while come up with melodies. That's rare, though. Most of the time, I do not come up with a melody until I have come upon lyrics first.
EDIT2: @atrlster: Lyricists write just lrics, songwriters write lyrics + music, producers just do the music. I consider myself more of a lyricist, but I have full-on wrote a song before.