Automatic performing apparatus of electronic musical instrument

• US 4,417,494 A
• Filed: 09/21/1981
• Issued: 11/29/1983
• Est. Priority Date: 09/19/1980
• Status: Expired due to Term

• Current Assignee: Nippon Yusen Kabushiki Kaisha
• Original Assignee: Nippon Yusen Kabushiki Kaisha
• Inventors: Nakada, Akira, Yoshida, Kiyoshi, Okamoto, Eisaku
• Primary Examiner(s): Isen, F. W.
• Application Number:
  US06/304,009
• Time in Patent Office: 799 Days
• Field of Search: 84/1.28, 84/1.03, 84/1.01, 84/1.19, 84/1.24
• US Class Current: 84/612
• CPC Class Codes: G10H 1/26 for automatically producing a series of tones

Abstract

An automatic performing apparatus of an electronic musical instrument comprises a memory for storing musical note data representing progression of a music to be played and control data for controlling such a generation mode of music tones being generated as tone color and modulation effect. The generation mode of musical tone signals generated by a tone forming circuit in response to the musical note data read out of the memory is also automatically controlled by the control data read out of the memory.

Claims

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

memory means for storing performance data read out from a recording medium external to said performing apparatus, said data representing a progression of music to be played and comprising pitch sub-data representing pitches of notes of said music, duration sub-data representing durations of said notes and control sub-data for controlling a generation mode of the music to be played which pertains to at least one of a tone color, a modulation effect, a rhythm and a tempo, said sub-data each having an identifying code which distinguishes between the respective sub-data wherein said control sub-data is stored at memory locations which allows the control sub-data to be read out from said memory means only at a time when the tone generation mode is to be changed;

read-out means for successively reading out the performance data from said memory means in accordance with the progression of the music wherein said read-out means comprises means responsive to said identifying code for distinguishing the respective sub-data in the performance data and means responsive to the duration sub-data of each note to read out the pitch sub-data of the next note every time the duration of each note lapses after the pitch sub-data is read out;

first latch means for latching the pitch sub-data and the duration sub-data both read out from said memory means, the sub-data latched in the first latch means being updated every time new pitch sub-data and new duration sub-data are read out from memory means;

second latch means for latching said control sub-data read out from said memory means, the control sub-data latched in the second latch means being updated only when the generation mode of the music is changed;

tone signal generating means for generating musical tone signals in response to the pitch sub-data and the duration sub-data latched in said first latch means; and

means for controlling the generation mode of the music in response to the control sub-data latched in said second latch means.

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

memory means for storing performance data read out from a recording medium external to said performing apparatus, said data representing a progression of a music to be played and comprising pitch sub-data representing pitches of notes of said music, duration sub-data representing durations of said notes and control sub-data for controlling a generation mode of the music to be played which pertains to a least one of a tone color, a modulation effect, a rhythm and a tempo, said sub-data each having an identifying code which distinguishes between the respective sub-data wherein said performance data is stored in said memory as a set of sub-data which set includes said control sub-data only when the generation mode of the music is to be changed;

read-out means for successively reading out the performance data from said memory means in accordance with the progression of the music wherein said read-out means comprises means responsive to said identifying code for distinguishing the respective sub-data in the performance data and means responsive to the duration sub-data of each note to read out the pitch sub-data of the next note every time the duration of each note lapses after the pitch sub-data is read out;

tone forming means for forming musical tone signals in response to the pitch sub-data read out of said memory means and distinguished by said distinguishing means; and

means for controlling the generation mode of the music in response to said control sub-data read out of said memory means and distinguished by said distinguishing means.