Can't remember the name of a band.

Lydia Pense  and Cold Blood? The were formed in ‘68 though.

I was thinking both Genya Ravan and Lydia Pense!! 

Sheryl Crow taught school, but that was much later.

Cold Blood…hit it hard in ‘69…SF based

Old expression: "Those who can, do. Those who can’t teach." Don’t blame me, I didn’t coin it ;-) .

Cold Blood were.....hot. All the Bay Area musicians loved ’em. For a male-fronted band with horns, it was The Sons Of Champlin and Sly & The Family Stone. Chicago were (are) squares, like the guys in your high school marching band. Tower Of Power were/are too "busy" for me.