Psychedelic Saturday -- Jethro Tull
This is the song that got me paying attention to Jethro Tull. It's got a blues slide guitar sound but a much freer structure than standard blues -- not surprising coming out of England in the late 60's from a band with a flute player as leader. "Song For Jeffrey":
Yes, that was a very young Mick Jagger introducing the band, on an amazing show the Stones put together in 1968 for English
