TRANSPOSING PIANO WITH LATERALLY MOVABLE KEYBOARD

In a transposing piano a movable key lever carriage on the key lever bed is adapted for lateral movement of the key levers for a desired transposition. The key levers are straight, of a reduced length to clear the action supports during lateral movement, and are provided with a center slot which receives a center key pin on the carriage and a rear slot at the rear end which receives and is guided by a rear key pin on the carriage during pivotal movement thereof, the key levers being readily removable from the carriage. A space equalizing assembly is provided on each sticker rod to equalize gap spacing and transmit motion from a selected key lever to a selected sticker rod. A releasable coupling connects each space equalizing assembly to a capstan. A clutch bar supports the key levers to facilitate the release of each space equalizing assembly from each capstan for allowing lateral movement of the key levers.