I'm currently working on a small music album to celebrate my unfinished webcomic's 4 year anniversary.
Necrowaltz was one of my favorite tracks and it's used for the last animation made before the comic was scrapped, so I thought it would make sense to remix it in this album.
The original song takes heavy inspiration from the touhou songs, so you might hear a lot of melodies from that.
You may only use this piece for commercial purposes if your work is a web-based game or animation, otherwise you must make specific arrangements with the artist.