Is Chicago losing two of its coolest under-the-radar venues?

UPDATED TUESDAY A.M.: Cal’s alive and well (see below).

Though I hate to post rumors as news, the local music scene has been buzzing that two underground venues may be shutting its doors in the near future. (Calls to confirm both went unreturned.)

Cal’s 400 Liquors on S. Wells has been serving as one of the cooler dive bars on the punk-rock underground for several years now, but several musicians who frequent the place say it’s going out of business, and its MySpace page doesn’t list any shows after Nov. 25 (which is not in itself unusual, as Cal’s has never exactly been on top of publicizing its calendar).

According to Mike Feirstein of Cal’s, the punk-rock dive is alive and well. He emailed:

Meanwhile, the calendar is equally empty for the coming weeks at Sonotheque, the hipster venue at the cutting edge of electronic dance music on Chicago Avenue at the fringes of Wicker Park.

It would indeed be a loss to the local music scene if both venues are going under. Anyone out there have the facts? (I’d love to be proved wrong on both counts.)