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

• Current Assignee: Nippon Yusen Kabushiki Kaisha
• Original Assignee: Nippon Yusen Kabushiki Kaisha
• Inventors: Mizuno, Kotaro, Okamoto, Eisaku
• Primary Examiner(s): Isen, Forester W.
• Application Number:
  US06/324,599
• Time in Patent Office: 1,001 Days
• Field of Search: 84/1.03, 84/1.19, 84/470 R, 84/1.01, 84/1.24
• US Class Current: 84/609
• CPC Class Codes: G10H 1/26 for automatically producing a series of tones

Abstract

An automatic performing apparatus of an electronic musical instrument arranged to produce musical tones in response to musical performance data read out of an external storage such as a musical sheet. The external storage stores the musical performance data and control data to control generation mode of musical tone signals to be produced. In the apparatus, musical performance data and control data are stored in separate memories. In order for a player to change the generation mode of musical tone signals intentionally, a plurality of panel switches are associated with a control data memory so that the control data for tone generation mode can be rewritten by operation of any one of panel switches.

Claims

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.

4. The automatic performing apparatus according to claim 1, wherein said second memory means includes a visual indicator circuit for visually indicating the state of each bit of said control data.

5. The automatic performing apparatus according to claim 1 further comprising keyboard means having keys;

musical tone signal generating means coupled to said keyboard means for producing musical tone signals in response to depression of keys; and

key indicator means coupled to said first memory means for visually indicating a key to be depressed on said keyboard means in response to the pitch data in the musical performance data read out of said first memory means.

2. An automatic performing apparatus of an electronic musical instrument comprising:

first readout means for reading out of an external storage means musical performance data having pitch data and duration data of musical notes constituting a music to be played and control data of a plurality of bits adapted to control generation mode of musical tone signals to be generated;

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 corresponding to said bits of said control data, respectively; 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;

wherein said second memory means comprises a plurality of flip-flop circuits having their set inputs connected to receive said bits of said control data; and

said control data modifying means includes a multiplexer coupled to said switch circuit means for multiplexing output signals of said manual switches in a time sharing manner;

a shift register having its input coupled to said multiplexer and having stages the number of which is equal to the number of said manual switches coupled to said multiplexer;

a first AND circuit having a first input directly coupled to said input of said shift register and a second input coupled to an output of said shift register through an inverter;

a first demultiplexer coupled to an output of said first AND circuit for applying an output signal of said first AND circuit sequentially to said set inputs of said flip-flop circuits;

a second AND circuit having a first input directly coupled to said output of said shift register and a second input coupled to said input of said shift register through an inverter; and

a second demultiplexer coupled to an output of said second AND circuit for applying an output signal of said second AND circuit sequentially to reset inputs of said flip-flop circuits.

3. An automatic performing apparatus of an electronic musical instrument comprising:

first readout means for reading out of an external storage means musical performace data having pitch data and duration data of musical notes constituting a music to be played and control data of a plurality of bits adapted to control generation mode of musical tone signals to be generated;

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 corresponding to said bits of said control data, respectively; 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,

wherein said second memory means includes a latch circuit having inputs connected to receive said bits of control data to latch the control data at a predetermined time; and

said control data modifying means includes a multiplexer coupled to said switch circuit for multiplexing output signals of said manual switches in a timing sharing manner;

a shift register having its input coupled to said multiplexer and having stages the number of which is equal to the number of said panel switches coupled to said multiplexer;

an AND circuit having a first input directly coupled to said input of said shift register and a second input coupled to an output of said shift register through an inverter; and

a demultiplexer coupled to an output of said AND circuit for sequentially applying an output signal of said AND circuit to said inputs of said latch circuit.

6. An automatic performing apparatus of an electronic musical instrument comprising:

storage means for storing 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;

readout means for reading out of said storage means said musical performance data and said control data;

register means for registering therein said control data read out of said storage means;

musical tone signal generating means coupled to said readout means for generating musical tone signals in accordance with said read out musical performance data and including means responsive to the control data from said register means to control the musical tone generation mode in accordance therewith;

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 register means for modifying the control data registered in said register means according to selective operations of said manual switches so that the respective generation mode constituting factors of tones being automatically played are additionally and selectively controlled by said manual switches.

7. An automatic performing apparatus of an electronic musical instrument comprising:

storage means for storing musical performance data to carry out an automatic performance of musical notes constituting music and control data comprising a plurality of data units each of which controls a specific one of tonal characteristics of said automatic music performance including a tone color, a modulation effect and an accompaniment rhythm pattern;

readout means for reading out of said storage means said musical performance data and said control data;

register means having a plurality of register locations corresponding to the respective data units of said control data, said register means storing the control data from said readout means in the register location;

musical tone signal generating means coupled to said readout means for generating musical tone signals for the automatic music performance in accordance with said read out musical performance data and including means responsive to the control data from said register means to control the tonal characteristics in accordance with the control data from said register means;

switch circuit means having a plurality of manual switches corresponding to the respective data units of said control data so that each of said manual switches is assigned to a specific one of said tonal characteristics; and

control data modifying means coupled to said switch circuit means and said register means for modifying the control data registered in said register means according to selective operations of said manual switches which correspond to the respective data units of the control data, thereby manually and selectively controlling the tonal characteristics of said automatic music performance in addition to the control by said control data stored in said storage means.