List of Mario Party 5 music
From the Super Mario Wiki
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In Mario Party 5, the player can listen to the game's music in the Options mode. Unlike in previous Mario Party games, which had few unlockable tracks, a large portion of the music is unavailable from the start.
Unlocked after beating Story Mode
Unlocked after playing every board in Party Mode at least once
Unlocked after playing Super Duel Mode several times