Pacific Gas & Electric, Fillmore West, June 1970. Later known simply as PG&E. They were a little-known band aside from their one hit, relying on the vocals of Charlie Allen. Christgau actually gave their 1969 album an A-. When I saw them, the headliners were Sha Na Na.
Yusef Lateef, Keystone Korner, ???. I probably shouldn't bother including them ... I can't even remember when we saw them (although I'm pretty sure it was late-70s/early-80s), nor can I remember any details of the show other than the venue. But I do remember seeing them, nonetheless, and it's so rare for me to have attended a jazz show, so here is Yusef Lateef, a multi-instrumentalist, perhaps not as famous as some jazz greats, but he recorded for more than 50 years.
Robin Trower, Oakland Coliseum 8-3-75; Winterland 5-8-76. I liked him enough to have seen him twice. The first was a Day on the Green (called "The British Are Coming") where Trower headlined a bill that included such big names as Fleetwood Mac, Peter Frampton, and Dave Mason. In some ways, he was the artist most suited to those outdoor shows than anyone I ever saw, because his long, distinctive guitar solos wafted above the Coliseum so delightfully. Trower, whose guitar added so much to Procol Harum, had quite a run in the 1970s, with four gold albums, two of them making the Top Ten. At the time, he was often compared to Hendrix ... I had a friend who actually said once that she thought when Hendrix died, his soul entered Trower. He is still at it in his mid-70s, having released an album last year with British reggae artist Maxi Priest. "Daydream" is so much my favorite of his songs that I will stop what I am doing to listen to any version that crosses my path ... I've spent more than a few hours on YouTube listening to one after another. It's still beautiful to this day. Here's one from Winterland in 1975 ... the singer/bass player, James Dewar, was an underrated, soulful vocalist.
In the early 2010s, British blues artist Chantel McGregor included a cover of "Daydream" on her first album, and she played it often enough and well enough (and long enough ... she'd been known to extend the song for upwards of 15 minutes) that I've listened to her versions on YouTube quite often as well.