Music for Chair Massage

Here is something a little different.  Any suggestions for music to do chair massage by???

Picture this scenario:  An annual motorcycle rally, where chair massage is offered to all riders.

I am looking for bluesy, old school Eric Clapton,Stevie Ray Vaughan type music.  nothing too fast, but relaxing.

I have successfully worked various blues festivals in the past offering chair massage and i am looking forward to working this upcoming bike rally.

I would love to hear from anyone out there with your suggestions.  Thanks so much. Enjoy