Philly had a great music scene back then. I saw Sonny Terry and Brownie McGhee at the 2nd Fret and The Velvets numerous times. Everyone who was touring came through Philly.
I was hangin' out at 8th Street Music one day with a pal, and these hairy hippy guys walked in and started shopping. My buddy is freaking out, and I can't understand why.
"Don't you know who that
is? he asked me.
"Nope."
"That's the Grateful Dead, man!"
I had no idea who they were.

They couldn't find everything they needed for their show that night, so my friend Cliff and I rode around Philly in the back of their rental truck showing them where all the music stores were. They were very nice guys.
Regards,
Bob