This post by Ted Gioia focuses on how musical innovations drove Silicon Valley. He details how HP was started to get better sound for the Disney film, Fantasia.
Twelve special movie theaters were getting upgraded with special speakers for this music-driven film. Disney wanted to test the recording equipment and speakers in preparation for the Fantasia release, and hired Hewlett and Packard when they were still just freelancing engineers. The two entrepreneurs, exicted by the Disney deal, flipped a coin to decide the name of their new business—Hewlett won the toss, and got first billing.
Gioia goes on to remind us that Steve Wozniak unsuccessfully pitched the personal computer to his employer, HP, five times before leaving to found Apple.