Free-form radio is scary to a lot of people. Traditional programming wisdom is that nothing horrifies listeners more than fear of the unknown. WRIR-FM 97.3, Richmond’s radio home for the musically mysterious, unearths indigenous melodic monstrosities at the Monster Mashquerade on Saturday, Oct. 29, at the Camel. Featuring the scarily catchy sounds of Dazeases, League of Space Pirates, Pete Curry and DJ Jamie Lay, the fundraising night for the station will mortify mortals with a ceaseless barrage of hooks, harmonies and chutzpah. It’s a truly morbid affair for those that live within the safe confines of their corporate radio dials, so skip this fright fest if exposure to good live music scares you. Don’t be fooled by the costume contest, giveaways and overall merriment either — these people will stop at nothing to infect your mortal soul with a good time. Doors open for the disgusting display of musical worth at 8:30 p.m. Suggested cost of revulsion is $5-$10. thecamel.org.