Have you ever played any video games that incorporated music as a major part of the game? If so, which ones and what did you think of them?
For this I'm thinking of any game where music or something related to it is a major mechanic. Anything from Dance Dance Revolution to Guitar Hero and everything inbetween.
Personally, the only one I've played is the PlayStation 2 RPG Ephemeral Fantasia, which has portions where the player has to play a guitar via the main character. Supposedly it works with one of the old guitar controllers, but I used a normal PS2 controller. It was pretty good, but I thought the guitar parts were rather difficult for me.