Touhou project has so much covers/remixes that you could never run out of songs to listen to. There are Terabytes of music to enjoy.
Here are 3 of the same song. (Hartmann's youkai girl.)
1
2
3

Want an accordion cover? Here's one "Judgement in the Sixtieth Year ~ Fate of Sixty Years"
here

Folk? Enjoy this one of "Futatsuiwa from Sado"
click me!

An actual orchestra? "Emotional Skyscraper ~ Cosmic Mind"
here you go!

and for one of my favorites. This one is of "Bloom nobly, Cherry-blossoms of Sumizome ~ Border of Life"
Latin lyrics!