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Automatic performing apparatus of electronic musical instrument

  • US 4,466,324 A
  • Filed: 11/24/1981
  • Issued: 08/21/1984
  • Est. Priority Date: 12/04/1980
  • Status: Expired due to Term
First Claim
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1. An automatic performing apparatus of an electronic musical instrument comprising:

  • first readout means for reading out of an external storage means musical performance data comprising pitch data and duration data of musical notes constituting music to be automatically played and control data comprising a plurality of data units each corresponding to a specific factor which constitutes a generation mode of musical tones of said music;

    first memory means for storing the musical performance data read out of said external storage means;

    second memory means for storing the control data read out of said external storage means;

    second readout means for reading the musical performance data out of said first memory means at time intervals represented by the duration data of musical notes in the musical performance data;

    musical tone signal generating circuit means coupled to said first memory means and responsive to the pitch data in the musical performance data to produce musical tone signals, said musical tone signal generating means including means responsive to the control data from said second memory means to control the generation mode of said musical tone signals;

    switch circuit means having a plurality of manual switches each corresponding to the specific generation mode constituting factor controllable by said control data; and

    control data modifying means coupled to said switch circuit means and said second memory means for modifying the control data stored in said second memory by selectively operating said manual switches so that the respective generation mode constituting factors are additionally and selectively controlled by said manual switches.

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