Bill Koncar is a popular strolling accordionist and polka band leader in the Midwest area frequently performing at Gasthof zur Gemutlichkeit (Minneapolis, MN) Bayrischer Hof Bavarian Restaurant (Montrose, MN), Winzer Stube German Restaurant (Hudson, Wisconsin), Hessen Haus (Des Moines, Iowa) and various other public & private events and parties including the Minnesota State Fair.