Yer Blues (The Dirty Mac)
(Yoko & The Dirty Mac)

plus The Who and The Jimi Hendrix Experience

I have no specific info for this disc.
I remember, in the very early 1970s, this disc (or one like it) began getting some FM radio airplay in the midwestern U.S. Regrettably, I no longer have the recordings I made of those broadcasts.

Also, I know it was the source for several early Beatles, Lennon, Rolling Stones and The Who bootlegs

To me, this disc appears to have bee made for someone's personal use and not as a reference or promo disc. Why else would two completely unrelated performances (R&R Circus and Hendrix) be included on the same disc?

In my opinion, this Dirty Mac mix is THE best mix available.

This ENTIRE disc can be heard on Unicorn's "The Dirty Mac Sessions"