Please delete the first Yacchatta if you have it. It has different UID, and thus different ID music. I have put wrong title and UID, so yes, please move to the new one.
Part 1: Mokou and Marisa's part. Part 2: Ran and Meiling's part. Easy difficulty is part 1 Hard difficulty is part 2
Yacchatta with Touhou Origin Music:
Part 1 Preview: