The scoring of the cylinder for a musical box which precedes the drilling of the cylinder for the pinning of the musical program. Synonym: piquage.
production master roll
Finished master roll, ready to use on a roll-duplicating perforator, as opposed to an incomplete master roll which is used in the preparation of a production master. An incomplete master sometimes has only the introduction, one verse, one chorus, and the ending. From this, a production master having repeated choruses is made.
program card
Card with list of tunes giving the program of a music box, coin piano, orchestrion, etc. * Synonym: tune card.
projection
Term used to describe the protruding studs on the underside of a music box disc. Made by forming metal displaced by partially perforating the disc surface.
proscenium
(mainly European usage.) Facade or front, esp. of a fairground organ or dance organ.