They soar through the air, meeting midflight with the greatest of ease. No, it's not a daring pair of trapeze artists, but the performers of Hubbard Street Dance Chicago. This modern company is hailed for its innovative techniques, which include elegant and seemingly effortless aerial movements executed by dancers suspended in midair. Now celebrating its 30th year, HSDC performs a respectable repertoire of modern dance works by emerging and established choreographers. The company's current program ranges from Twyla Tharp's short classic, "Baker's Dozen, " to the Tunisian percussion-inspired "Cor Perdut," by Nacho Duato. See these and several other works when HSDC brings its show to Tampa Bay Performing Arts Center this Saturday. Sat., Feb. 16, 7:30 p.m., Ferguson Hall-TBPAC, 1010 N. MacInnes Place, Tampa, $29.50-$49.50., 813-229-7827, tbpac.org.