Bob Dylan, 1987, rehearsal with grateful dead fragment, 1CDR, 27min, 

excellent sound, this is like the rehearsal for the rehearsals, maybe the first bit of rehearsals when they first meet, including equipment setup, tuning, talking which is hard to hear, with a little music mainly song fragments, most of which dylan does not stand out on vocals or are shared harmony vocals - music is very rough and unpracticed, this is a fly on the wall view

1 The French Girl, Blues Stay Away from Me 
2 equip change  & warm up 
3 John Hardy 
4 discussion 
5 jam 
6 I'm So Lonesome I Could Cry

(Bob Dylan, Jerry Garcia, Bob Weir, Micky Hart, and Steve Parish helping to set up);