Patents Assigned to John R. Shaffer
  • Music training instrument and method
    Patent number: 5266735
    Abstract: An improved method and apparatus for learning to play a musical instrument retrieve a stored sequence of musical notes and other data from a source, and determine locations on the musical instrument corresponding to the sequential music data from the source, and then indicate to the user upon the musical instrument the locations thereon where the instrument should be engaged to produce the note or chord to be played in the sequence.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: November 30, 1993
    Assignee: John R. Shaffer
    Inventors: John R. Shaffer, Craig Bradley