Creates the Neighborhood Concert Tax Act. Provides for a 2% tax on admission tickets to organized for-profit concerts in public parks. Establishes the Neighborhood Concert Tax Fund to be a repository for the tax proceeds. Provides for disbursement of 100% of the proceeds to the park district that hosted the concert to subsidize programs of the park district that ordinarily require a fee for participation. Defines terms. Makes corresponding additions to the State Finance Act. Effective immediately.