This is the Stage 1 theme from Touhou 6: the Embodiment of Scarlet Devil
Can also be translated as "A Soul That is Red, Like a Ground Cherry", or "A Soul as Red as an Oni's Lantern".
I almost forgot how much I liked this theme... ZUN's old instruments really spark a note in your heart. The distorted sounds and jumpy notes almost make me feel like I'm walking through the dark, and each note is a bump in the night, while each beat is the unknown footsteps behind you...