You probably know that Daniel Higgs, Arrington de Dionyso, and Calvin Johnson are playing Cairo tonight. But two of those musical mavericks—Higgs and Dionyso, plus Paul Hoskin—have added a date at Hollow Earth Radio Saturday November 10 (8 pm, $7, all ages). This is great news, as Cairo is tiny and there's a helluva lot happening tonight, so this extra show gives you another chance to witness some truly otherworldly sonic sorcery. Tune in at hollowearthradio.org or hit the station's space at 2018A E. Union St.