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Class 84/613 - Chords


Subclass of Class 84 - Music
Definition: Subject matter wherein the note sequence contains a plurality
No. of patents: 196
Last issue date: 05/15/2012


        5  
NumberTitleIssue Date
4939974Automatic accompaniment apparatus
An automatic accompaniment apparatus performs an automatic accompaniment having much variety with less storing amount of information (e.g., rhythm pattern data or pattern data). Based on the stored information, generation of tone or chord is controlled. I...
07/10/1990
4926737Automatic composer using input motif information
An automatic composer comprises an input device which inputs part of a musical piece and information on the progression of music such as a chord progression, an analyzer which extracts parameters characterizing the part of the musical piece, and a melody ...
05/22/1990
4920849Automatic performance apparatus for an electronic musical instrument
An automatic performance apparatus which records a performance state in the form of performance data in a storage means, and plays back a performance based on the performance data read out from the storage means In a record mode, a chord detection means d...
05/01/1990
4905561Automatic accompanying apparatus for an electronic musical instrument
A new automatic accompaniment apparatus for sequentially reading out at a predetermined tempo accompaniment pattern information, including interval shift information, stored in a pattern memory and then generating tones of a designated chord, designated b...
03/06/1990
4887503Automatic accompaniment apparatus for electronic musical instrument
An automatic accompaniment apparatus for an electronic musical instrument is provided with an instrumentation selecting switch for selecting a desired instrumentation, a data generator for generating instrumentation data selected by the selecting switch w...
12/19/1989
4876938Electronic musical instrument with automatic performing function
Melody and chord tone data are read out from a melody RAM and a chord RAM under the control of address counters in a CPU, and are supplied to LSIs. The LSIs are controlled by the CPU for operation on a time division basis for a plurality of channels, so t...
10/31/1989
4860624Electronic musical instrument employing tru-scale interval system for prevention of overtone collisions
An electronic musical instrument for reproducing chords in a fixed interval scale, know as Tru-Scale, without overtone collision. The instrument includes a memory for storing of frequency information corresponding to respective notes for producing tones u...
08/29/1989
4682526Accompaniment note selection method
In a method for providing musical accompaniment in response to the playing of an accompaniment-type musical instrument, accompaniment chord voicing is randomly selected from a pluraltiy of stored possibilities and the chord is sounded according to the sel...
07/28/1987
4674383Electronic musical instrument performing automatic accompaniment on programmable memorized pattern
An electronic musical instrument has an accompaniment keyboard arranged to detect, in programming mode, accompaniment key informations including the actuated timings of the depressed keys relative to a tempo from a tempo generator as well as the relative ...
06/23/1987
4664010Method and device for transforming musical notes
A method of and a device for transforming the musical notes of a piece of music into different notes to obtain a new piece of music. The notes constituting the original piece of music are stored in an original music memory. These notes are then transforme...
05/12/1987
4656911Automatic rhythm generator for electronic musical instrument
Every time a new chord signal is supplied to a chord memory circuit, a previous chord signal is supplied to a chord comparison and calculation circuit together with the new chord signal to obtain a chord change signal representing a degree of change betwe...
04/14/1987
4633751Automatic performance apparatus
An automatic performance apparatus includes input circuitry for serially inputting musical sound information of a predetermined melody and musical sound information to be imparted to the melody, in accordance with progressions of the melody and a chord. A...
01/06/1987
4630517Sharing sound-producing channels in an accompaniment-type musical instrument
In a method for providing musical accompaniment in response to the playing of a musical instrument, wherein the accompaniment has a plurality of musical components performing different musical functions, a preselected number of virtual channels implementi...
12/23/1986
4624171Auto-playing apparatus
Data for a plurality of musical pieces is preset in a ROM pack and also on a tape recorder. Musical piece data read out from the ROM pack or tape recorder is supplied from a control section to melody generators, a chord generator, a bass generator and a r...
11/25/1986
4619176Automatic accompaniment apparatus for electronic musical instrument
In an automatic accompaniment apparatus for electronic musical instrument capable of automatically generating accompaniment tones such as base tones, chord tones and arpeggio tones, arrangement is provided so that, at each time of depressing keys on an ac...
10/28/1986
4587878Automatic performing apparatus and data recording medium therefor
An automatic performing apparatus for use in an electronic musical instrument stores chord name data and chord generation timing data to carry out an automatic chord performance. In spite of frequent variations of a chord during the progression of a music...
05/13/1986
4561338Automatic accompaniment apparatus
A ROM has 16 memory locations of addresses No. 0 to No. 15. Bass pattern data for the first bar are stored in the memory locations of the addresses No. 0 to No. 7, and bass pattern data for the second bar are stored in the memory locations of the addresse...
12/31/1985
4553465Electronic musical instrument producing bass and chord tones utilizing channel assignment
An electronic musical instrument is of a type in which tones are produced by a limited number of tone production channels which are efficiently used for a larger number of tones utilizing channel assignment technology. Normally, three of the channels are ...
11/19/1985
4543869Electronic musical instrument producing chord tones utilizing channel assignment
An electronic musical instrument is of a type in which tones are produced by a limited number of tone production channels which are efficiently used for a large number of tones utilizing channel assignment technology. A plurality of tones to constitute a ...
10/01/1985
4539882Automatic accompaniment generating apparatus
A plurality of tone data indicative of the pitch and duration of a series of tones forming the melody of a number are stored in a performance memory by operating a key input section. Accompaniment chord data can be automatically obtained from an automatic...
09/10/1985
4519286Method and apparatus for animated harmonization
A method and associated apparatus for sounding music played by a performer according to a preselected style. Accompaniment notes having a harmonious tonal relationship to preselected melody and chord information are arranged into a plurality of groups. Ap...
05/28/1985
4508002Method and apparatus for improved automatic harmonization
A method and associated apparatus for embellishing the melody played on an electronic musical keyboard instrument. A set of musically-derived tables relates harmonious accompaniment notes to the melody in accordance with the chosen harmony and is addresse...
04/02/1985
4449437Automatic piano
The present invention is an electronic piano that includes various "easy play" features that enable a person with little musical training to play the piano producing music similar to that of a skilled musician. The "easy play" feature automatically create...
05/22/1984
4419916Electronic musical instrument employing keyboard tonality designation system
Tonality designation of an electronic keyboard instrument is realized by utilizing keys instead of conventional tonality designation switches provided on the panel of its. The tonality designation system comprises a tonality data forming circuit and a mem...
12/13/1983
4344344Electronic musical instrument having musical performance training system
An electronic musical instrument comprises a keyboard, a tone signal forming circuit to produce musical tone signals corresponding to keys being depressed on the keyboard, a memory to store musical performance data, a keyboard display device to visually i...
08/17/1982
4339978Electronic musical instrument with programmed accompaniment function
An electronic musical instrument capable of providing automatic bass and chord accompaniments, either in accordance with a program prepared by the player or in immediate response to the depressing of a minimum number of keys on lower and pedal keyboards. ...
07/20/1982
4282786Automatic chord type and root note detector
In an electrical keyboard musical instrument apparatus is provided for automatically selecting one of a library of chord types which is closest to a chord played on the instrument. The closest decision is made by processing the actuated keyswitch data by ...
08/11/1981
4282788Electronic musical instrument with automatic chord performance device
An electronic musical instrument with an automatic chord performance device is of a type in which chord tones of plural series of different tone colors in different rhythm patterns are produced. This instrument employs a memory for storing a plurality of ...
08/11/1981
4191083Method and apparatus for memorizing an accompaniment passage
A method and apparatus for memorizing and playing back an accompaniment passage in an electronic organ wherein the keyboard is multiplexed to develop a serial input data stream having keydown signals in the time slots corresponding to the depressed keys, ...
03/04/1980
4177708Combined computer and recorder for musical sound reproduction
A multichannel recording medium storer which samples the time course of notes produced by an instrument and an address for each of these samples. An interchangeable keyboard transmits a signal or signals to an electronic computer as to which note or notes...
12/11/1979
4171658Electronic musical instrument
An electronic musical instrument of a type having automatic performance functions includes means for switching a tone production mode to another tone production mode without stop of tone production when the automatic performance is stopped, so that a smoo...
10/23/1979
4144788Bass note generation system
The bass note generation system provides one of several different types or styles of bass-line accompaniment for the organist. A chord pattern detector receives signals on keying lines corresponding to keys depressed by the instrument player and attempts ...
03/20/1979
4142433Automatic bass chord system
In order to simplify the intricate wiring in known automatic bass chord systems and to reduce the number of separate decoders used therein for all chords of each key, an apparatus is provided which allows the use of only one decoder per chord type. When a...
03/06/1979
4129055Electronic organ with chord and tab switch setting programming and playback
Circuitry in an electronic organ for electronically storing a series of signals corresponding to depressed keys depression and for recalling the stored series in response to player commands. The circuit allows the player to play accompaniment chords of a piece...
12/12/1978
4012979Music teaching apparatus
An apparatus for teaching a person to play a musical instrument, particularly a keyboard instrument. The chord and melody notes of a musical passage are stored in a memory in the form of chord words and melody words each comprising a predetermined number ...
03/22/1977
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