What is your "holy grail song" that you cannot find?

@mitchagain Widespread Panic does do a great cover of that.

Jerry Shirley from Humble Pie: And once they all got there, we set up and played a couple of those Band songs. Music from Big Pink  had just come out [in mid-1968], and we were all blown away by it, The first song we ran through – I can clearly remember – was a cover arrangement of their song “We Can Talk”. We had wanted to also do “Chest Fever”, but we didn’t have a Hammond organ yet.

Qobuz doesn't have Tom Russell's "Poor Man's Dream" album, which was his best and best-recorded. Subsequent recordings of "Gallo del Cielo" are available but much inferior. I want the good one on a HF playlist.

@judsauce ,

There are at least two 45's of that song for sale on EBay right now.

Hot Smoke and Sassafras, by the Bubble Puppy.

I heard that song in the early 60's and totally flipped out over it. Can't find an LP or 45. 

@thecarpathian I heard it a couple of times on WKLS (96 Rock) in Atlanta back in the 70's. I didn't hear it again until around 15 years ago, when I heard it on KGSR in Austin. So, I'm beginning to think that it was some kind of limited promotional item that only 1970's DJ's would know about. That theory could explain why there is no info on it and why it is so hard to find  

I can't even find information that they covered it.

Mademoiselle Nobs can only be found on Pink Floyd bootleg "Live In Pompeii". That is THE MOST psychedelic song ever been recorded. 

That's where Richard Wright's dog (Mademoiselle Nobs) was singing on stage.

I'm looking for a cover version of "Chest Fever," which was written by and originally performed by The Band. Currently, the best known cover versions of that song were done by Three Dog Night and Widespread Panic. 

Humble Pie, “Rocking The Fillmore” has the live version of Stone Cold Fever

Not a big Humble Pie fan, so I could be wrong, but they did a song called "Stone Cold Fever".  Readily available.