This one is an excellent 'hot' West Coast session. It was reissued on CD as part of the Conn 'West Coast Classics' and is definitely worth seeking out.
Certainly remember hearing Avery Sharpe with McCoy but it wasn't with that particular band - slightly later on, again at Scotts, when McCoy played there with his trio. I think Albert 'Tootie' Heath was on drums on that occasion.
Definitely John Blake. Can picture him now up on the bandstand in that white suit ! Saw that band with Blake around that period a couple of times (around 1981/82) and it was absolutely smokin'. Never heard Tyner play better than back then. Joe Ford completed the front line. John Lee was on bass and Wilby Fletcher on drums I think (had recently replaced Sonship Theus).
I think the band I saw was a quintet though - don't recall George Adams being in the front line (it was at Ronnie Scotts). They played several of the tunes from 'Horizon'.
To this day, I still rate hearing this band as one of the finest performances I've ever witnessed.
How about the hardcore acts like The Wurzels and The Yetties (not to mention Jethro )
Pam Ayres is Oxford I think so 'A Northerner' (ie. anyone North of Shepton Mallet)