65 ILCS 5/11-45-7

In any municipality which has a population of more than 100,000 and not more than 200,000, which municipality is authorized to levy the tax authorized in this Division 45, the mayor of such municipality shall, with the approval of the city council, proceed to appoint a commission of 5 persons chosen from the citizens at large with reference to their fitness for such office; and/or in any municipality with a population of less than 500,000 which levies a "Recreation Tax" under Division 95 of the Municipal Code, the corporate authorities may designate the Recreation Board as the commission to conduct and maintain a municipal band and/or programs in the performing arts.