That is my favorite Cream tune-I keep the CD with it in my truck-a CD of old heavy tunes-it has “In a Gadda da Vida”, “This is the End”, “Roadhouse Blues” and such on it.
Here’s the Vassar version:
https://www.youtube.com/watch?v=rsKTmt1M6D0
It’s on his album “Full Circle.” Vampire Goth Bluegrass!