Transposition Supports
Prepare a piece of scrap wood - 1/2" [12.7mm] wide, and as long as the key end felt on the adjacent key. Cover the top surface with the same felt you used for the key end felt. Adjust the height (and angle) of the block until the top surface of the felt is flush with the top of the key end felt on the adjacent key. To avoid problems when the keyboard is shifted, the top of the support block must be flush with the top of the adjacent key, and on the same plane. Take your time to get this right! When you're satisfied that all is well, glue the support down, leaving a slight space between it and the adjacent key so as not to interfere with the key's ability to move up and down. If you needed to make a notch in the cheek block to make room for this support block, glue the block to the keyframe only - not to the cheek block. Make and install a similar block on the other end of the keyboard.
