Patent ID: 7557280

Claim:
An automatic player musical instrument for performing a piece of music on the basis of pieces of music data, comprising: a musical instrument including plural manipulators independently moved for specifying the pitch of tones to be produced selectively through full-stroke movements and other movements, plural action units respectively actuated by said plural manipulators, and provided with jacks, respectively, plural hammers associated with said jacks, respectively and driven for rotation through escape of said jacks, and a tone generator producing said tones at said pitch specified through said plural manipulators in response to said rotation of said plural hammers; and an automatic playing system including plural actuators provided in association with said plural manipulators, respectively, and responsive to a driving signal so as selectively to move said plural manipulators, a reference trajectory producer examining said pieces of music data to see whether said full-stroke movements or said other movements are to be requested for said plural manipulators for determining reference key trajectory groups for said plural manipulators depending upon the movements to be requested and having a first reference key trajectory group producing module producing selected ones of said reference key trajectory groups for the manipulators causing the associated hammers to start said rotation through said escape, thereby producing said tones through said escape between said hammers and said jacks and a second reference key trajectory group producing module producing one of said reference key trajectory groups for one of said plural manipulators causing associated one of said plural hammers to start said rotation without said escape so as to produce one of said other movements, thereby producing said tones without said escape, and a controller connected to said plural actuators and said reference trajectory producer and regulating a magnitude of said driving signal so as to cause said plural manipulators to travel on said reference trajectory groups.