Another Friday, another chance to delve beneath the boring surface of contemporary music and explore its strange, smelly underbelly with experienced subterranean divers Angela and Mark of WEIRDO RECORDS. Today Mark talks about a mysterious tape of gritty noise, while Angela promotes a CD box set from veteran avant-guard composer, pianist and producer Dave Tudor. Both these items, and many more delectable oddities, are available at their cozy cave in Central Square, Cambridge. Come by, say hi!