Abstract: A drum and pitch adjustment device for a drum includes a drum with a sound producing membrane, a device for applying pressure to the sound producing membrane, and a cable configured to the device for applying and releasing pressure to the sound producing membrane, changing the pitch of the drum, but goes back to the drum's original pitch when absent this force. A hand operated lever, located on the side of the drum, operates the cable which makes the pressure device push up against the sound producing membrane and changing it's pitch. Absent this force, the drum goes back to its original pitch, which creates different tonal variety when played in real-time.

Abstract: A drum and pitch adjustment device for a drum includes a drum with a sound producing membrane, a device for applying pressure to the sound producing membrane, and a cable configured to the device for applying and releasing pressure to the sound producing membrane, changing the pitch of the drum, but goes back to the drum's original pitch when absent this force. A hand operated lever, located on the side of the drum, operates the cable which makes the pressure device push up against the sound producing membrane and changing it's pitch. Absent this force, the drum goes back to its original pitch, which creates different tonal variety when played in real-time.

Abstract: Here in lies the abstract of the drum wah. It is used to put pressure or lessen pressure on the sound membrane of a torn drum in real time, while the performer plays. It has two main components. It is made by attaching a metal beam into the inner walls of the tom drum, then attaching another metal beam on a hinge. This second beam, when tugged by a string, bends the pitch of the tom drum. The second component is the lever, which is controlled by hand pulling the string attached to the movable beam, creating a pitch change in the sound membrane of the tom drum. The lever is attached to the side of the drum and is hinged to control the string that pulls the moveable beam inside the drum.