Low violin pipes in certain German fairground organs (e.g., Bruder, Ruth), which bridge the musical gap between the highest accompaniment and lowest melody pipes, for example.

Expression device which increases the pump suction level by decreasing the amount of atmospheric pressure normally bled into the system. Used in Ampico, Coinola, and certain other instruments.

The piece of steel protruding from the bottom of a cylinder musical box comb tooth which holds the damper pin and damper in place.

The central shaft in the cylinder of a musical box.

To play the notes of a musical chord one after another in sequence, within a piece of music. (Normally, all notes of a chord are played at the same time.)