I am getting into more Psychedelic Rock and Blues rock these days. Early Clapton, Cream, Joplin...evolved from Hendrix. Nice call on "The Band" - those guys rock in the vein of early Allman Brothers.
In terms of Jazz, I am still on ever-expanding exploration of soul-jazz and the newest artist is Bobby Timmons.
In regards to Joe Farrell, I would recommend either "Quartet" or "Outback". It's very difficult to classify his style, but it's free though I wouldn't call it Avant-Garde by any means.