The Speed of Sound is a 1988 all-instrumental album by American rock guitarist Ronnie Montrose, who led the bands Montrose and Gamma and also performed and did session work with a variety of musicians, including Van Morrison, Herbie Hancock, Beaver & Krause, Boz Scaggs, Edgar Winter, Gary Wright, The Beau Brummels, Dan Hartman, Tony Williams, The Neville Brothers, Marc Bonilla, Sammy Hagar, and Johnny Winter. Wikipedia