In the main building, the Paulus-Schlössl, around 1,400 instruments from all types of instruments are on display, including a large collection of non-European instruments as well as the instruments of Vogtland master instrument makers from the last three centuries. The museum includes the Gerber-Hans-Haus with the tourist office, museum cash desk and two historical workshops as well as the giant violin and giant tuba, the historic sawmill with city history and special exhibitions, the Paulus-Schlössl with the musical instrument museum and the world music garden. The latter is particularly recommended and unfortunately only opens from the end of March. He's going on winter break again in November, but I wouldn't want to bike here anyway.
The tour takes at least two hours, and even longer if you want to take a closer look at the city's history and maybe even take a tour of the sawmill. Last entry is one hour before closing.
There is a large bike rack at the tourist office, the museum is not in the middle of the city so it is easy to ride there. The cobblestones in the beautiful small town of Markneukirchen alone spoil the fun of the ride. After a visit to the museum, you can also stop off for a coffee in one of Markneukirchen's many cafés.