David and The Dorks (Garcia, Crosby, Lesh, Hart/Kreutzmann(?))
The Matrix, SF
12/20/70
"The Rehearsal"

Source: MR>R>DAT>CD

1) Alabama Bound
2) tuning
3) 8 Miles High (Jam)
4) tuning
5) 8 Miles High (w/ vocals)
6) tuning
7) Cowboy Movie
8) The Wall Song
9) tuning
10) Bertha (Instruction)
11) Bertha (Song)

This is the afternoon rehearsal for the evening show that is already available on FuthurNet.  I got this in 1973 from the master reel.  The box did not give a date, just a month and year.  There are actually 2 dates going around for the show (12/20/70 & 12/15/70).  I'm using the 12/20 date since that seems to be the more accepted date.  I played a few cuts from this on David Gans' Dead Head Hour, but here is the whole rehearsal intact.

Note: This recording contains the only version of 8 Miles High, since they didn't play it during the evening show.  Also, the box did not list the drummer, and I have assumed it to be Bill Kreutzmann all these years just because of the playing style.

Enjoy!

fStop