The Wisconsin Chamber Orchestra's Concerts on the Square is an outdoor concert series in Madison held on the lawn of the Wisconsin State Capitol each summer, usually beginning at 7:00pm.The series consists of six concerts on Wednesday evenings. It is known alternately as “The Biggest Picnic of Summer". 2015 will be its 32nd season.The Wisconsin Chamber Orchestra, is led by Maestro Andrew Sewell with a core orchestra of 34 musicians.