Farm (1971) Sunshine In My Window - LOST 70s GEMS

A Latin, Jazz Blues rocker from an unknown US group based in Illinois; I came across this youtube, with it's furious, utterly unrelenting drumming, frenetic blues shredding that resembles Santana's fluid tone and unremitting Samba percussion I was completely absorbed in this highly melodic tune. This is before the a soulful organ enters and the tempo steadily changes to a slow back beat that rock and soul groups alike were heavily employing in the late 60s; then the gorgeous aching vocal melody joins in and the guitars and organ play the same chords to blend together for some merely foundation for the vocals. The lead guitar from I assume the 1st guitarist listed Del Herbert, proceeds to obliterate everything with another furious display, it's dramatic, mellow and aggressive style of playing all at once.