Marin music calendar for week of Jan. 27, 2012Marin Independent-JournalFridays: Live music. Sundays: LGBT happy hour with the Rainbows and Rockets Band. Wednesdays: Open mike with Dennis Haneda. MAYFLOWER PUB — 1533 Fourth St., San Rafael; 456-1011. Fridays: Karaoke. Tuesdays: Traditional Irish music night.