The energy of this performance is incredible.  It really shows SRV at his best... playing in a small, smoky, room, with sweat rolling off of him as he squeezes note after note out of his guitar.  The musics is so awesome, I made a cassette of the audio to listen to in my car.  This performance includes some of his best versions of Mary Had a Little Lamb, Testify, and several that were previously not available anywhere else.