Join Ben Prince on Fridays at Martuni's for happy hour from 5:30pm until 8:30pm.  Ben Prince, one of San Francisco’s premier accompanists and music directors, kicks the weekend off with your favorite modern rock, R&B and pop songs from the 60s, 70s, 80s and 90s, as well as showtunes and standards.   Just like a good martini, Ben Prince’s H@ppy HØu®  is Piano Bar … with a twist!