Stevie Ray Vaughan & W.C. Clark - Insturmental Jam

This is a performance video by Stevie Ray Vaughan that I only recently discovered. It features Stevie Ray Vaughan and fellow Texan musician W.C. Clark on the bass. As the song is an instrumental jam there is no song title.
W.C. Clark is a Texan blues, funk and jazz musician. He plays both guitar and bass. He first learned the guitar at around age fourteen and then moved on to playing bass. In the 1970's he formed a band called "Triple Threat Revue" where he played with Lou Ann Barton and Stevie Ray Vaughan. He played in many bands in this period and also played with Stevie's brother Jimmie Vaughan in another band.
This instrumental jam is a true gem among SRV fans. It's really great to hear how well he fits in with the whole funk thing. Also his soloing and rhythm playing on this is spot on perfect. I know they probably rehearsed this prior to the performance, or more correctly, I'm assuming that, but who knows maybe it really is all improvised. All I know is that it is a really good performance and Stevie's abilities as a guitarist really shine through.