Like the Museum of Ethnology and the Museum of Arts and Crafts, this museum is housed within the Grassimuseum complex. Museum für Musikinstrumente's origins date back to 1902, with the founding of the Musikhistorische Museum von Wilhelm Heyer in Cologne. Much of the collection was provided by Paul de Wit, a Leipzig musical instrument dealer. A tour of the museum gives visitors the chance to inspect around 5,000 historical instruments, including the first hammer grand piano ever made (1726). The museum organizes a public tour at 10:30a every Sunday as well as regular concerts in the Bachsaal.