who knows what this song is?

[aarony37]

i think its one of the remixes, but i couldnt found it
i downloaded it long long time ago , and it doesnt have name
so just want to figure out wts the name of the song since i really love it

http://www.youtube.com/watch?v=mvip8Lnh0wY

[Egg]

"Phantom Ensemble (Ghostly Band ~ Phantom Ensemble)"

It's a touhou theme.