Unfortunately the previous reviews say nothing about the music. The following quote from the Arhoolie Records site may be of help:
"A spontaneous live recording by blues and folk singer Barbara Dane with Houston, Texas blues icon Lightning Hopkins during an afternoon gathering at Berkeley's legendary coffee house, the Cabale, in the early 60's, with Barbara on acoustic and Lightning on electric guitars.
The first half of this CD is Lightning and Barbara improvising on the spot, while the second half is comprised of Barbara performing classic blues and other songs, with Ray Skjelbred playing piano on most. These selections reflect Barbara's social consciousness at the time, including a superb rendition of Woody Guthrie's moving "Deportees (Plane Wreck at Los Gatos)."
All previously unreleased, except #1, 2, 4, 7 and 17 which appeared on ARH LP 1022."