Lower Decks, from TNG. Searching for Par'maq In All The Wrong Places, DS9, if I'm getting the title correct. Ooh, The Inner Light--I taught myself to play Picard's song on my recorder because of that. Hm, Far Beyond The Stars was an awesome one for Avery Brooks.

If I sit here long enough I'm probably going to go through all of 'em, heh.