gos, Evan, Japas and Tijo (the  keyboardist, bass guitarist and drummer respectively) all perform a  rendition of certain music from past Zelda games when you visit them  in their rooms in Zora Hall. They will play them whenever you are  not talking to them. The tunes are as follows; Evan plays the Game  Over theme from the original NES Legend of Zelda, Japas plays the  Dungeon theme from Legend of Zelda and Tijo plays the Cave theme  from A Link to the Past