Player piano with radio-controlled projection of lyrics

Claim 1

In combination with a player piano for playing a plurality of musical compositions which are played consecutively, said player piano having piano controls and a piano motor, the apparatus comprising: a. a coin controlled mechanism for actuating the piano controls and the piano motor at the beginning of each musical composition, b. a radio transmitter activated concurrently with said piano motor, c. radio receiver means for receiving signals from said radio transmitter, d. a screen for the reception of an image of at least a portion of the lyrics of a musical composition, e. projector means for projecting an image onto said screen of the lyrics of a musical composition being played by said player piano, f. control circuit means activated by said radio receiver means for controlling said projector means, g. counting means in said control circuit means for counting the number of musical compositions that have been played, said counting means comprising: 1. selector switch means manually positionable to establish the maximum count of musical compositions to be played before said projector means is reset and deenergized, 2. and stepping relay means capable of advancing toward the manually set position of said selector switch means each time a coin is accepted by said coin controlled mechanism.