Choose a melody and determine the number of notes needed
Select a music box movement or mechanism
Gather materials such as a case, comb, cylinder or disc, winding key, screws, and adhesive
Design the layout for the mechanism inside the box
Cut and prepare the wooden or metal box parts
Install the music box movement securely inside the case
Attach the comb and ensure the tines align with the cylinder or disc
Mount the cylinder, disc, or pinned drum so it can trigger the notes
Connect the winding mechanism and test smooth rotation
Adjust the spacing and alignment of the parts for proper sound
Close the box and secure all components
Wind the mechanism and test the melody
Fine-tune the mechanism until the tune plays correctly
Decorate the exterior of the music box if desired