Assuming it it the same recording, it is on Amazon with a review note from Bob
http://www.amazon.com/Black-Dog/dp/B...=cm_cr_pr_pb_t
3.0 out of 5 stars Rehearsal On Tape ; Warts And All ;-) May 10, 2011
By R. Welch
This is a rehearsal "monitor mix" of one of my bands fooling around (for FUN) with Led Zeppelin's famous song, Black Dog , which I consider to be among the best "hard" rock songs ever... I thought some people might like to hear a really "rough" , casual performance like this.......That's why I called this "review", "Rehearsal On Tape.......;-)
Bob Welch
ex-Fleetwood Mac/Capitol Records solo artist