Crypt of the NecroDancer

From the introduction:

An odd world. One we know next to nothing about. There is magic and vampires and people such as there always seem to be. The people whisper stories about a Golden Lute that offers immortality to any who play it. But they do not speak of the thudding beat echoing up from the ground in places. It is the proof their rumors are anything but. However, those who go looking for its source never return.

And yet, year after year, dozens of adventurers disappear. Drawn to the song rising up...

...from the Crypt of the NecroDancer.