Having exhausted all 102 counties in Illinois, “Professor” Harold Hill gives Iowa a try and soon enough convinces River City of its trouble with the “sin and corruption” of the pool hall, trouble that can only be stopped by forming a boys’ band. Marian the librarian suspects he’s a con-man, but she begins to trust him after seeing how he’s given confidence to her shy younger brother. Soon, this “Music Man” has transformed the entire town, not only turning the bickering school board into a barbershop quartet, but himself into an honest man. When the stage erupts with “76 Trombones,” you’ll be cheering along with River City for Harold Hill!