Drummer Zack Keller plays with the band Gravity Burrito during an open mic event in the parking lot of Offbeat Music Store in Lake Zurich on Aug. 18, 2012. | Joe Cyganowski—For Sun-Times Media

Jim Bestios shows off his selection of unique guitars during an open mic event at Offbeat Music Store last summer. The store has been a fixture in downtown Lake Zurich since it was founded 15 years ago. | Joe Cyganowski—For Sun-Times Media

The band Gravity Burrito perfomed during an open mic event outside Offbeat Music Store in Lake Zurich on Aug. 18, 2012.. | Joe Cyganowski—For Sun-Times Media

Peter Nguyen shows off a minidisco ball during an open mic event outside Offbeat Music Store in Lake Zurich on Aug. 18, 2012. | Joe Cyganowski~For Sun-Times Media

Guitarist Cooper Kleinke plays with the band Gravity Burrito during an open mic event outside Offbeat Music Store last summer. The store has been a fixture in downtown Lake Zurich since it was founded 15 years ago. | Joe Cyganowski—For Sun-Times Media

Offbeat Music Store hosted an open mic event Aug. 18, 2012, in its parking lot in Lake Zurich on Aug. 18, 2012. | Joe Cyganowski—For Sun-Times Media