Abstract: In a tunable drum, a connector member in the drum is attached by linkages to a tuning ring, and is threadedly coupled by a tuning linkage to a retaining member fixed to the drum. Rotation of the tuning linkage with respect to the drum moves the connector member longitudinally and, as a result, adjusts the tension of the drumhead. In one embodiment, a motor is coupled to the tuning linkage such that an operator can manually adjust the tuning via a motor. In another embodiment, a transducer and tuning circuit can automatically provide control signals to the motor based on a difference between a desired frequency and a determined frequency.

Abstract: In a tunable drum, a connector member in the drum is attached by linkages to a tuning ring, and is threadedly coupled by a tuning linkage to a retaining member fixed to the drum. Rotation of the tuning linkage with respect to the drum moves the connector member longitudinally and, as a result, adjusts the tension of the drumhead. In one embodiment, a handle is oriented at an angle to the tuning linkage, and is coupled to the tuning linkage such that an operator can adjust the tuning linkage from the side of the drum.

Abstract: In a tunable drum, a connector member in the drum is attached by linkages to a tuning ring, and is threadedly coupled by a tuning linkage to a retaining member fixed to the drum. Rotation of the tuning linkage with respect to the drum moves the connector member longitudinally and, as a result, adjusts the tension of the drumnhead. In one embodiment, a handle is oriented at an angle to the tuning linkage, and is coupled to the tuning linkage such that an operator can adjust the tuning linkage from the side of the drum.

Abstract: In a tunable drum, a connector member in the drum is attached by linkages to a tuning ring, and is threadedly coupled by a tuning linkage to a retaining member fixed to the drum. Rotation of the tuning linkage with respect to the drum moves the connector member longitudinally and, as a result, adjusts the tension of the drumhead. In one embodiment, a motor is coupled to the tuning linkage such that an operator can manually adjust the tuning via a motor. In another embodiment, a transducer and tuning circuit can automatically provide control signals to the motor based on a difference between a desired frequency and a determined frequency.

Abstract: In a tunable drum, a connector member in the drum is attached by cables to a tuning ring, and is threadedly coupled by a tuning linkage to a retaining member fixed to the drum. Rotation of the tuning linkage with respect to the drum moves the connector member longitudinally and, as a result, adjusts the tension of the drumhead. In one embodiment, a handle fixed to the tuning linkage is positioned to engage a complementary coupling in a drum stand when the drum is retained by the drum stand. In another embodiment, the complementary coupling is movable between an operative position in which the drum can be tuned by rotating it with respect to the stand, and inoperative position in which the drum can be placed in the stand without the handle engaging the complementary coupling.