Music box

A music box comprising:

• a plurality of star wheels configured to rotate about a first axis, each of the plurality of star wheels comprising a plurality of protruding parts protruding outward in a radial direction of each of the plurality of star wheels;
• a plurality of vibration valves corresponding to the plurality of star wheels, the plurality of vibration valves being arrayed along a first direction extending parallel to the first axis;
• a plurality of anchoring members corresponding to the plurality of star wheels, each of the anchoring members being configured to engage corresponding one of the plurality of protruding parts;
• a plurality of electromagnets corresponding to the plurality of anchoring members;
• and
• a control unit configured to control one or more of the plurality of the electromagnets to be a first state by supplying an electricity and control each of the plurality of electromagnets to be a second state in which a supply of the electricity is stopped,
• wherein each of the plurality of anchoring members is configured to engage with one of the plurality of protruding parts in the second state,
• wherein the one or more of the plurality of anchoring members is configured to rotate about a second axis extending parallel to the first axis in the first state, and the one or more of the plurality of anchoring members is positioned remote from the electromagnet with a gap therebetween in the first state.

A music box comprising:

• a plurality of star wheels configured to rotate about a first axis, each of the plurality of star wheels comprising a plurality of protruding parts protruding outward in a radial direction of each of the plurality of star wheels;
• a plurality of vibration valves corresponding to the plurality of star wheels, the plurality of vibration valves being arrayed along a first direction extending parallel to the first axis;
• a plurality of anchoring members corresponding to the plurality of star wheels, each of the anchoring members being configured to engage corresponding one of the plurality of protruding parts, each of the plurality of anchoring members comprising a surface facing each of the plurality of the star wheels and a concave part along the surface;
• a plurality of electromagnets corresponding to the plurality of anchoring members;
• and
• a control unit configured to control one or more of the plurality of electromagnets to be a first state by supplying a first electricity and control each of the plurality of electromagnets to be a second state by supplying a second electricity, wherein the second electricity is lower than the first electricity,
• wherein each of the plurality of anchoring members is configured to engage with one of the plurality of protruding parts in the second state, and
• wherein the one or more of the plurality of anchoring members is configured to rotate about a second axis extending parallel to the first axis in the first state.