The Maid and the Pocket Watch of Blood - Touhou Azure Reflections Music Extended 

Touhou Azure Reflections music that has been extended to play for 15 minutes.
Developer(s): Souvenir Circ.
Publisher(s): Unties
Gives me the feeling I'm running in an endless, mysterious corridor, without knowing what's coming in the next turn. And that's exactly what the stage is.
It's sounds nice, although I slightly prefer the original, because of the cymbals.