"Mausoleum Mash (1-3) - Crypt of the NecroDancer" is a high quality rip of "Mausoleum Mash (1-3)" from Crypt of the NecroDancer.
Jokes[]
This is a kazoo cover of the advertised track, while the original music plays in the background. At 0:09, it's an audio clip from the video "FUCK RICK ROLL'D I WANT MY ANIME!!!!" from the YouTube user karmastar312.