In addition to A World of Accordions Musuem, the HARTS Subsidiaries comprises The Hanni Strahl Concert Hall, the Repair and Technicians' School and Accordion-Concertina Music Studios with branches in Burnsville (Minneapolis - St. Paul) and Duluth. Each of these subsidiaries compliments the other offering an extraordinary and complete range of services which in turn, support each other. For a list of upcoming concerts, the legacy behind Hanni Strahl and an archived list of events, please visit the Hanni Strahl Concert Hall link. For information pabout the Repair and Technician's School and the Accordion-Concertina Music Studios, please select the appropriate link from the below menu.