The following paper documents the prototype of a musical door that interactively plays sounds, melodies, and sound textures when in use. We took the natural interactions people have with doors—grabbing and turning the knob and pushing and puling motions—and turned them into musical activities. The idea behind this project comes from the fact that the activity of using a door is almost always accompanied by a sound that is generally ignored by the user. We believe that this sound can be considered musically rich and expressive because each door has specific sound characteristics and each person makes it sound slightly different. By augmenting the door to create an unexpected sound, this project encourages us to listen to our daily lives with a musician’s critical ear, and reminds us of the musicality of our everyday activities.