I've got 2 Phoenix boards (one says GGI on the board, I think the other has GGI on the screen when you're playing). Anyway, neither melody chip works, one has the little daughterboard with the 7910, the other has the MN6221AA. Most of the Phoenix's I've played where the music works play Für Elise when you blow up the mothership and a different tune at the start. I've seen one that played Greensleeves when you started a game. I don't know what chip that one had in it though, but it was a real Phoenix machine, not a bootleg (although I have no idea if the board itself was original or not)