For every amateur blues rock and 70's rock this beautiful live testimony. The voice of gregg yet young at the time is a surprising maturity, the pair of guitarists duane allman / dickey betts is fabulous. The group poses with this album all foundations like "southern rock" paving the way for many other formations (lynyrd skynyrd for example) that will shape their own style after being inspired by this fundamental album. ( HIGHLY ADVISABLE A MUST!