Sun., Aug. 25, On Air

William Curtis Park, 6 p.m., no cover

If you can't quite put your finger on what attracts you to the sounds of Chicago or Tower of Power, once you hear the horn section of the 11-member band On Air, you'll know it's the horns. Those trumpets and trombones remain forever in the shadows, yet so important in songs like “Saturday in the Park” or “You're Still a Young Man.” Let's not forget the baritone and tenor sax. Whether performing covers of J. Geils Band, Van Morrison or Carlos Santana, or pulling Motown and R&B hits, On Air is sure to entertain. Also on the bill is Music Matt, who introduces children to music and instruments, one letter at a time. 3349 W. Curtis Drive,