Considering what I've heard about the episode where Alex manages Jennifer's band - which doesn't come until Season Five - it almost seems like Alex would have to use the word "harmony" in that episode, as it's my understanding that he wants Jennifer's band to be singing old songs three-part harmony style (a la The Andrews Sisters).
Anyway, I'm just asking out of curiosity.
ETA: I feel a little embarrassed asking this question, but it's just something that I'm curious about. Just so you know, I already tried searching Google - and I'm not really finding anything useful. The episode, Band on the Run, doesn't seem to have a transcript online anywhere. I was hoping that someone here has seen that episode and can let me know.