Automatic music player system

An automatic music player system having at least a reproducing mode, comprising:

• (a) a piano having a keyboard provided with a plurality of keys, sound generator means operative to mechanically generate sounds when the keys are actuated, and effector means operative to affect the sound generated by the sound generator means upon actuation;
• (b) control means operative to produce drive signals based on the musical information stored therein in said reproducing mode;
• (c) a key driver assembly set on said piano and provided with a plurality of solenoid-operated actuators respectively corresponding to said keys and having respective plungers projecting toward the corresponding key, said key driver assembly being responsive to said drive signal for selectively actuating said keys;
• (d) effector drive means responsive to said drive signal and operative to actuate said effector means;
• (e) electric wires coupling said piano to said control means and electrically connecting said control means to said key driver assembly and said effector drive means;
• (f) a chair retaining said control means, said effector drive means and a source of electric power and providing a position wherein an operator sits when the operator plays said piano;
• and
• (g) a shifting mechanism allowing said key driver assembly to move between an open position angularly spaced apart from said keyboard and a closed position capable of actuating the keys of said keyboard, wherein the plunger of each solenoid-operated actuator has a stroke shorter than a stroke of said corresponding key.

An automatic music player system having at least a reproducing mode, comprising:

• (a) a piano having a keyboard provided with a plurality of keys, sound generator means operative to mechanically generate sounds when the keys are actuated, and effector means operative to affect the sound generated by the sound generator means upon actuation;
• (b) control means operative to produce drive signals based on the musical information stored therein in said reproducing mode;
• (c) a key driver assembly set on said piano and provided with a plurality of solenoid-operated actuators respectively corresponding to said keys and having respective plungers projecting toward the corresponding key, said key drive assembly being responsive to said drive signal for selectively actuating said keys, said plunger of each solenoid-operated actuator having a stroke shorter than a stroke of said corresponding key;
• (d) effector drive means responsive to said drive signal and operative to actuate said effector means;
• (e) electric wires coupling said piano to said control means and electrically connecting said control means to said key driver assembly and said effector drive means;
• (f) a chair retaining said control means, said effector drive means and a source of electric power and providing a position where an operator sits when the operator plays the piano;
• and
• (g) a shifting mechanism allowing said key drive assembly to move between an open position angularly spaced apart from said keyboard and a closed position capable of actuating the keys of said keyboard, said shifting means having a positioning device operative to fix said key driver assembly in the closed position.

An automatic music player system having at least a recording mode and a reproducing mode, comprising:

• (a) a piano having a keyboard provided with a plurality of keys, sound generator means operative to mechanically generate sounds when the keys are actuated, and effector means operative to affect the sound generated by the sound generator means upon actuation;
• (b) control means operative to store a musical information produced by a keying-in on said keyboard and an operation of said effector means in said recording mode and to produce drive signals based on the musical information stored therein in said reproducing mode;
• (c) a key driver assembly set on said piano and provided with a plurality of solenoid-operated actuators respectively corresponding to said keys and having respective plungers projecting toward the corresponding key, said key driver assembly being responsive to said drive signal for selectively actuating said keys;
• (d) effector drive means responsive to said drive signal and operative to actuate said effector means;
• (e) electric wires coupling said piano to said control means and electrically connecting said control means to said key driver assembly and said effector drive means;
• and
• (f) a chair retaining said control means, said effector drive means and a source of electric power and providing a position where an operator sits during said recording mode, wherein the plunger of each solenoid-operated actuator has a stroke shorter than a stroke of said corresponding key.

An automatic music player system having at least a recording mode and a reproducing mode, comprising:

• (a) a piano having a keyboard provided with a plurality of keys, sound generator means operative to mechanically generate sounds when the keys are actuated, and effector means operative to affect the sound generated by the sound generator means upon actuation;
• (b) control means operative to store a musical information produced by a keying-in on said keyboard and an operation of said effector means in said recording mode and to produce drive signals based on the musical information stored therein in said reproducing mode;
• (c) a key driver assembly set on said piano and provided with a plurality of solenoid-operated actuators respectively corresponding to said keys and having respective plungers projecting toward the corresponding key, said key drive assembly being responsive to said drive signal for selectively actuating said keys, said plunger of each solenoid-operated actuator having a stroke shorter than a stroke of said corresponding key;
• (d) effector drive means responsive to said drive signal and operative to actuate said effector means;
• (e) electric wires coupling said piano to said control means and electrically connecting said control means to said key driver assembly and said effector drive means;
• (f) a chair retaining said control means, said effector drive means and a source of electric power and providing a position where an operator sits during said recording mode;
• and
• (g) a shifting mechanism allowing said key drive assembly to move between an open position angularly spaced apart from said keyboard and a closed position capable of actuating the keys of said keyboard, said shifting means having a positioning device operative to fix said key driver assembly in the closed position.