Event Festival of Great Organ Music Presented in partnership with the American Guild of Organists Most Southwest Florida fans of organ music know that June means a major concert by some of the finest organists in the area. Now in its 29th year, the Festival of Great Organ music is an opportunity for the mammoth four-manual Casavant-Frères organ in Hayes Hall to be put through its paces by members of the American Guild of Organists, all of whom are organists and choir directors at prominent local churches. If you like organ music, you’ll love this recital.