US3567838A - Musical instrument rhythm system having provision for introducing automatically selected chord components - Google Patents

Musical instrument rhythm system having provision for introducing automatically selected chord components Download PDF

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Publication number
US3567838A
US3567838A US875915A US3567838DA US3567838A US 3567838 A US3567838 A US 3567838A US 875915 A US875915 A US 875915A US 3567838D A US3567838D A US 3567838DA US 3567838 A US3567838 A US 3567838A
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note
lead
chord
low
signal
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Charles J Tennes
Donald R Kern
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Marmon Co
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Hammond Corp
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements

Definitions

  • matic musical responses are also available from the high and 250/27 low note select preference circuits and the chord circuit.
  • This invention makes use of any of the various basic and well known types of automatic rhythm systems which have a cycle timer or some other scheme to operate a collection of gates. Operation of the gates gives various percussive noise sounds on an appropriately timed basis to provide the rhythm accompaniment according to any of several patterns, such as Fox Trot, Waltz, Rhumba, March, or those of a more complicated nature, such as some of the Latin rhythms, according to the will of the designer.
  • an automatic system is arranged to control three or more additional gates, one for the root, another for the fifth, or their equivalents, and a third for the chord. Others will be discussed presently.
  • this is achieved by using low note select and high note select preference circuits controlled by the accompaniment manual together with frequency dividers and wave shaping circuits such that when the automatic rhythm system calls for the root by opening the root gate, the note sounded will be two octaves down from whatever is the lowest note being played on the ac- :ompaniment manual. Similarly, when the automatic programmer calls for the fifth, the note played will automatically be two octaves down from the highestnote held in the accompaniment manual. The third gate when opened will play the full chord, whatever it is.
  • the player when supplied with this arrangement therefore, has an automatic rhythm system which can play extremely complicated patterns made up of appropriate percussive noise sounds and two different bass notes, which may be percussive, both of which are harmonious with whatever chord is being held by the left hand, plus the chord.
  • the two bass notes will be musically effective, particularly since the ears pitch discrimination at low frequencies is rather poor and also because the note played as or in place of the root will always be lower than the note placed as or in place of the fifth.
  • FIG. 1 is a diagrammatic representation of a simplified organ system embodying the present invention
  • FIG. 2 is a chart showing typical connections made by a programmer to obtain automatic patterns representative of those available with this invention as illustrated in FIG. 1,;
  • FIG. 3 is similar to FIG. I, but shows a more extensive development of the system.
  • FIG. ,1 the system of this invention is shown in simplified block form, since the various individual elements are known to those skilled in this art.
  • the tone signal sources for the instrument are shown at 10. Just what form they take is a matter of choice.
  • One common scheme is to provide 12 independent oscillators which give the 12 notes for the top octave of the instrument and to use 12 divide by two frequency dividers to give the next lower octave and so on until all the required notes are provided for.
  • these signal sources provide 53 notes from G# at 104 Hz. to C at 2092 Hz. These frequencies and those to be mentioned later are expressed in round numbers in the interest of simplification.
  • the accompaniment section has 20 keys and extends from C 131 Hz. to G 392 Hz. It is convenient to refer to this as a 4 foot stop.
  • the solo section has 41 keys to provide both an 8 foot stop from G#208 Hz. to C 2092 Hz. and a 16 foot stop from G# 104 Hz. to C 1046 Hz.
  • Thekeyboards l4 and 16 may be at separate levels or placed end to end as shown. The intention is that the accompaniment section 14 will be played with the left hand and the solo section 16 with the right hand.
  • the 16 foot output of the keyboard solo section is indicated at 18 and the 8 foot at 20. These lead through whatever solo controls 22 are desired to the output section 24 which in turn feeds the speaker system 26.
  • the swell control, reverberation circuitry and the like are not shown specifically but can be considered as a part of the output section 24.
  • Wave shaping circuits and the like are examples of controls in. the box 22. Wide variation in this general organization is of course possible and is contemplated, the present invention not being concerned with specific features or resources of the solo section, nor of the output section 24 and speaker 26.
  • the mixed output passes through lead 28 to a chord gate 30 and from the chord gate to an output lead 32 connected in turn to the output section 24.
  • the gate 30 may be of well known construction and has the characteristic that when a certain DC potential is applied to its control lead 34, the gate opens and permits thesignal to pass through from lead 28 to lead 32. In the absence of this DC potential the gate is closed. Holding keys in the accompaniment section 14, therefore, produces no response in the output section 24 unless the gate 30,is open.
  • Other gates to be mentioned subsequently have vthis same characteristic and the several gates in the instrument may have percussivecharacteristics or different percussive characteristics than others according to the will of the designer. The nature of such gates is well known and needs no detailed description.
  • the accompaniment section 14 also has a preference circuit which may be of the type forming the subject of U.S. Pat. No. 2,874,286, to Bode.
  • the important feature of this preference circuit is that whenever two or three or four or even more keys are held simultaneously in the keyboard section coveredby the preference circuit, the highest key so held will connect the generator for this highest note to a .high note select lead, represented in FIG. lby' the numeral 36 and the lowest key so held will connect the lowest note, which is representative thereof, to the lownote select lead 38.
  • CEG in that order is held in the keyboard accompaniment section, CEG as I a mixed signal will appear in lead 28, C in lead 38 and G in lead 36.
  • the low note select lead 38 is connected to a frequency divider 40 which divides the frequency by two and the output of this divider leads to a second divider 42 which again divides the frequency by two.
  • the output of the second stage divider 40 therefore, covers the range from C 32 Hz. to G 98 Hz. rather than the keyboard range from C 131 to G 392.
  • the signal passes through whatever are desired as wave shaping or formant circuits at 44 to the low bass lead 46.
  • the high note select lead 36 is connected through first and second stage dividers and wave shaping circuits at'48, 50 and 52 respectively to a high bass lead 54..
  • the low bass lead 46 is connected to the output 32 through a low bass gate 56 having a control connection 58 and the high has lead 54 is similarly connected to the output by way of high bass gate 60 having a control lead 62.
  • the gates 60 and 56 open when their control leads 62 .and 58 are energized at a certain potential.
  • a rhythm programmer is shown at 64.
  • the characteristics of this device are that the user can choose by the operation of tabs or buttons .any of several available built in rhythm patterns and the device will provide these patterns automatically at a selected rate.
  • -It may be a motor driven commutator type device, such as shown in U.S. Pat. No. 3,146,290, to Park, or U.S. Pat. No. 3,247,307, to Campbell, or it may be of the electronic coincidence type such as shown in U.S. Pat. No. 26,521, to Park.
  • the signal from whatever noise effect is pulsed passes through an on-off switching system 70 to the output lead 32.
  • the programmer 64 cycles on a two measure basis with a capability of 24 equally spaced pulses per measure. That is, any output lead, such as those at 66, can receive any desired number of pulses and at any time according to a preset program covering 48 equally time spaced intervals before repeating.
  • Such systems are current and common.
  • the programmer 64 has three extra output pulse leads indicated at 72, 74 and 76. These may be considered as identical to the leads 66 in that they can supply pulses according to any of several built-in programs. Instead of being connected to noise producing percussion circuits, however, they are connected through an on-off switching mechanism at 78 respectively to the control leads 34, 62 and 58 for respectively the chord gate 30, the high bass gate 60 and the low bass gate 56.
  • the gates 30, 60 and 56 are, therefore, under the control of the automatic rhythm programmer. The effect of this is that whenever a chord is being held in the accompaniment section 14, nothing sounds from this section until the programmer pulses one or more of the three leads 72, 74, 76.
  • a switch 80 or the equivalent can be provided to bridge around the chord gate 30. With this switch closed, the chord signal in the lead 28 goes directly to the output lead 32.
  • FIG. 2 gives a few examples of how this system may be used to advantage.
  • the numbers across the top represent the 48 time interval pulses available from the programmer covering two measures. Along the left various noise effects and the chord, high bass and low bass are listed. A dot on the chart indicates that the effect listed to the left is sounded at the time interval given vertically thereabove.
  • the first beat of the measure, the temple block, the wood block, the brush, the bass drum and the low bass note are all sounded together.
  • the brush is sounded
  • the chord is played along with the snare drum.
  • the temple block and the snare drum are sounded together with the chord.
  • the ninth interval calls for the temple block, the wood block, the chord and the snare drum.
  • the third beat of the measure, the brush and the bass drum are sounded together with the high bass note and so on.
  • the second measure is a repeat of the first excepting for variation in the wood block effect.
  • the station at 48, incidentally, is the same as at 0 and starts a new cycle.
  • the waltz pattern is comparatively simple and has the low bass note and bass drum at the first beat, position 0, the cymbal at position 6, the cymbal, the snare drum and the chord at the second beat, position 8, and the chord and snare drum at position 16, the third beat.
  • the second measure repeats the first.
  • the invention when applied to a musical instrument as in dicated above gives the player with only rudimentary skill the ability to provide complicated rhythm patterns which include chord and bass effects. As necessary he merely shifts fingers of the left hand to provide new chords, but there is no necessity to play the chords on'a timed basis. For example, see the line labeled Chord and Snare Drum in the Latin pattern, FIG. 2. To accomplish this and coordinate it with the high bass and low bass would be extremely difficult for .anyone not highly skilled if this invention were not available to him, even if he had available an automatic rhythm system to give all of the other sound effects.
  • FIG. .3, .can provide useful effects that would be extremely difficult to master on a conventional instrument, with or without an automatic rhythm system.
  • Some musicians become adept in certain types of effects, but have limited ability as to others which require the mastery of different techniques.
  • the introduction of grace notes, trills and other rapid fingering styles have little in common with Boogie which is a rapid and regular alternation between octavely related keys.
  • FIG. 3 the components essentially similar to those in FIG.
  • the sources 10 feed the accompaniment keyboard 14 having notes from C 131 to G 392 Hz. and the solo keyboard at 16. All outputs feed into line 32 connected to the output section 24.
  • a programmer 64- provides pulses to operate a collection of rhythm voices at 68 and a group of gates for the musical effects. In the present embodiment, however, seven of these gates are provided as will appear presently. These seven include counterparts of those in the first embodiment plus four extra.
  • the full chord signal appears in line 28 and is regulated by a gate 30 responsive to a control signal from the programmer 64 by way of line 34.
  • the chord low note appears in line 38 and passes through'divider 40 and divider 42 and thence throughlow bass gate 56.
  • the chord high note in line 36 passes through divider 48 and divider 50- and by way of gate under control of the programmer to the output. All of the above is substantially identical to the arrangement of FIG. 1.
  • the lead 38 is also connected through a gate 80 to the output 32, the gate 80 being under control of a lead 82 from the programmer 64.
  • lead 36 is connected to the output 32 through its gate 84 under control of the programmer lead 86.
  • Gates 80 and 84 therefore, enable automatic programming of the chord low and high note respectively without frequency division.
  • the output of the first frequency divider stage 40 is taken by line 88 and passed through gate 90 under control of programmer lead 92 and the output, of divider 48 is taken at 94 and passed through gate 96 under control of programmer lead 98.
  • the customary wave shaping circuits have been omitted excepting for one at 100 in the lead fromdivider 40 to gate 90. This is representative and it will be appreciated that such voicing circuits can be incorporated in any of the music signal leads.
  • FIG. 3 permits the player to have the chord play normally by closing switch 80, or to play automatically as called for by the programmer. Also the programmer can play selectively the chord high note, the chord low note,
  • chord high note one octave down the chord low note one octave down
  • chord high note two octaves down the chord low note two octaves down.
  • the second wave shaper 103 and gate 105 are representative of a provision that can be supplied for all of the signal leads and which can be under the control of the programmer.
  • the programmer not only can select a gate for the particular note to be played, but also it can select among two or more gates or 105 for instance for two or more voices represented by wave shapers and 103 for a particular note to be sounded, thus supplying additional variety to the automatic accompaniment and rhythm system.
  • some of the gate outputs can be com bined into a single lead having common wave shaping circuits which can be manually or programmer selected.
  • the use of this arrangement avoids the monotony as sociated with such waltz patterns as Root-Chord-Chord-Root- Chord-Chord or Fox Trot patterns, Root-Chord-Fifth- Chord-Root-Chord-Fifth-Chord, which are common and at about the limit of accomplishment of many players.
  • the root and fifth normally are bass notes played on the pedals.
  • chord CEG' can be held and the programmer set to play bass C on the first beat, G followed quickly by C at the second beat and the full chord on the third beat.
  • G and C are played in succession as a substitute or musical variation of the cymbal noise sound as indicated in FIG. 2.
  • Other variations will be apparent.
  • chord gates such as the gate at 30, can be put in each of the outputs.
  • the programmer can energize these gates selectively. As an example, it can gate them alternately and play octave alternations of the chord being held. This is a very useful effect not easily achieved with a conventional instrument.
  • This invention in its principal form supplies the accompaniment chord signal atone or more footages, the high note and the low note of the chord and octavely related lower notes, one or more octaves down, each on separate leads which are connectable individually to the output system.
  • an automatic rhythm programmer is shown and its operation described. Connections of these individual signal leads can, of course, be selectively made by manually actuated controls rather than by automatic control according to a preselected pattern. For some purposes such manual control of the individual connections will lead to greater personal expression, but of course greater skill is required.
  • Mixed systems are also possible in which, as an example, the high and low bass notes are played automatically and the chord lead intermittently connected to the output as desired according to the actuation of a manual control.
  • means providing a plurality of signal sources representative of notes of the musical scale, an output system, an accompaniment keyboard, a chord lead, a high note select lead and a low note select lead, said keyboard connecting said signal sources selectively to said chord lead according to keys played, a
  • preference system actuated by said accompaniment keyboard, said preference system adapted to supply the note signal for the highest playing key of a group of any number of keys played simultaneously in said accompaniment section to said high note select lead and the lowest note of'said group to said low note select lead, means for dividing the frequencies of the signals on said high and low note select leads to provide high and low note suboctave bass signals, control means connecting said high note suboctave signal and said low note suboctave signal and the mixed signal from said accompaniment keyboard individually to said output system, an automatic rhythm programmer, said automatic rhythm programmer being adapted to actuate said control means to connect said chord lead, said low note suboctave lead and said high note suboctave lead selectively to the output system cyclically and automatically according to a preset program.
  • the system called for in claim 1 including means for producing a plurality of noise type rhythm voices. depending upon which of several leads thereto receive a'control signal, said programmer being adapted to supply control signals selectively to the last said leads according to a preselected program.
  • means providing a plurality of tone signal sources representative of notes of the musical scale, an output system, a chord lead, a high note select lead, a low note select lead, manual means adapted when actuated to supply selected signals from several of said sources simultaneously to said chord lead, a preference system actuated by said manual means, said preference system adapted to supply the note signal for the highest of the group of note signals supplied simultaneously to said high note select lead and the note signal for the lowest note of said group to said low note select lead, and selectively actuated means for connecting said chord lead, said high note select lead and said low note select lead selectively to said output system.

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US875915A 1969-11-12 1969-11-12 Musical instrument rhythm system having provision for introducing automatically selected chord components Expired - Lifetime US3567838A (en)

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JP (1) JPS5325246B1 (enrdf_load_stackoverflow)
DE (1) DE2056509A1 (enrdf_load_stackoverflow)
FR (1) FR2069287A5 (enrdf_load_stackoverflow)
GB (1) GB1272345A (enrdf_load_stackoverflow)
NL (1) NL7016394A (enrdf_load_stackoverflow)
NO (1) NO128684B (enrdf_load_stackoverflow)
SE (1) SE366600B (enrdf_load_stackoverflow)
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Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624263A (en) * 1970-02-16 1971-11-30 Nippon Musical Instruments Mfg Electronic musical instrument with automatic bass performance circuitry
US3688009A (en) * 1970-11-13 1972-08-29 Seeburg Corp Musical device for automatically producing tone patterns
US3696200A (en) * 1970-10-27 1972-10-03 Baldwin Co D H Automatic sequential voicing
US3706837A (en) * 1971-06-17 1972-12-19 Wurlitzer Co Automatic rhythmic chording unit
US3707594A (en) * 1970-03-10 1972-12-26 Nippon Musical Instruments Mfg Automatic rhythm sound producing device adapted for use with keyboard musical instruments
US3708604A (en) * 1971-11-15 1973-01-02 Jasper Electronics Mfg Corp Electronic organ with rhythmic accompaniment and bass
US3708602A (en) * 1969-10-29 1973-01-02 Nippon Musical Instruments Mfg An electronic organ with automatic chord and bass systems
US3711618A (en) * 1971-02-22 1973-01-16 A Freeman Automatic harmony apparatus
US3715442A (en) * 1970-12-15 1973-02-06 A Freeman Chord tone generator control system
US3740449A (en) * 1971-06-24 1973-06-19 Conn C Ltd Electric organ with chord playing and rhythm systems
US3760088A (en) * 1971-04-27 1973-09-18 Nippon Musical Instruments Mfg Automatic rhythm playing apparatus
US3764721A (en) * 1971-09-30 1973-10-09 Motorola Inc Electronic musical instrument
US3766305A (en) * 1972-07-17 1973-10-16 Hammond Corp D.c. keyed high low select preference system for polyphonic electrical musical instruments
US3789718A (en) * 1971-12-30 1974-02-05 Baldwin Co D H Voltage controlled chord organ
US3795755A (en) * 1971-06-24 1974-03-05 Nippon Musical Instruments Mfg Automatic accompaniment device of an electronic musical instrument
US3803970A (en) * 1972-04-19 1974-04-16 Nippon Musical Instruments Mfg Automatic rhythm device with start and stop controller for clock oscillator and a gate
US3806624A (en) * 1972-07-14 1974-04-23 Chicago Musical Instr Co Discovery in keying circuit for a musical instrument
US3813472A (en) * 1971-08-20 1974-05-28 Nippon Musical Instruments Mfg Electronic musical instrument with rhythm selection pulse generator
US3832479A (en) * 1972-03-01 1974-08-27 L Aliprandi Electronic apparatus for programmed automatic playing of musical accompaniment systems
US3839592A (en) * 1973-04-30 1974-10-01 A Freeman Plural mode automatic bass system with pedal sustain
US3871262A (en) * 1973-12-14 1975-03-18 Kimball Int Electronic organ having delayed fill in
US3872765A (en) * 1972-12-28 1975-03-25 Pioneer Electronic Corp Chord selection apparatus for an electronic musical instrument
US3878751A (en) * 1970-11-30 1975-04-22 Opsonar Organ Corp Endless record audio signal generator and means for playing record
US3886834A (en) * 1973-05-11 1975-06-03 Nippon Musical Instruments Mfg Electronic musical instrument capable of modulation controlling a second keyboard section tone signal in accordance with a first keyboard section tone signal
US3889568A (en) * 1974-01-31 1975-06-17 Pioneer Electric Corp Automatic chord performance apparatus for a chord organ
US3918341A (en) * 1974-03-25 1975-11-11 Baldwin Co D H Automatic chord and rhythm system for electronic organ
US3921491A (en) * 1973-04-25 1975-11-25 Alfred B Freeman Bass system for automatic root fifth and pedal sustain
JPS5111431A (enrdf_load_stackoverflow) * 1974-07-18 1976-01-29 Nippon Musical Instruments Mfg
US3962945A (en) * 1973-06-22 1976-06-15 Wade E. Creager Foot actuated electronic organ
USRE29144E (en) * 1974-03-25 1977-03-01 D. H. Baldwin Company Automatic chord and rhythm system for electronic organ
US4019417A (en) * 1974-06-24 1977-04-26 Warwick Electronics Inc. Electrical musical instrument with chord generation
US4043242A (en) * 1975-12-10 1977-08-23 Cavicchio Raymond A Circuit for musical instrument
FR2376482A1 (fr) * 1976-12-29 1978-07-28 Philips Nv Dispositif pour le jeu automatique d'un accompagnement tonal dans des instruments de musique electroniques
US4135423A (en) * 1976-12-09 1979-01-23 Norlin Music, Inc. Automatic rhythm generator
US4137809A (en) * 1970-12-30 1979-02-06 D. H. Baldwin Company Arpeggio system for electronic organs
US4182211A (en) * 1977-09-21 1980-01-08 Siemens Aktiengesellschaft Information transmission system
JPS56115187U (enrdf_load_stackoverflow) * 1980-12-11 1981-09-04
US4476763A (en) * 1979-04-12 1984-10-16 Matsushita Electric Industrial Co., Ltd. Electronic musical instrument

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2539950C3 (de) * 1975-09-09 1981-12-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Bassakkordautomatik
JPS5629526U (enrdf_load_stackoverflow) * 1979-08-11 1981-03-20

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874286A (en) * 1955-07-29 1959-02-17 Estey Organ Corp Preference network
US3247307A (en) * 1962-08-17 1966-04-19 Seeburg Corp Rhythm tempo control system
US3255292A (en) * 1964-06-26 1966-06-07 Seeburg Corp Automatic repetitive rhythm instrument timing circuitry
US3340344A (en) * 1965-04-15 1967-09-05 Wurlitzer Co Transistorized electronic percussion generator with organ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874286A (en) * 1955-07-29 1959-02-17 Estey Organ Corp Preference network
US3247307A (en) * 1962-08-17 1966-04-19 Seeburg Corp Rhythm tempo control system
US3255292A (en) * 1964-06-26 1966-06-07 Seeburg Corp Automatic repetitive rhythm instrument timing circuitry
US3340344A (en) * 1965-04-15 1967-09-05 Wurlitzer Co Transistorized electronic percussion generator with organ

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708602A (en) * 1969-10-29 1973-01-02 Nippon Musical Instruments Mfg An electronic organ with automatic chord and bass systems
US3624263A (en) * 1970-02-16 1971-11-30 Nippon Musical Instruments Mfg Electronic musical instrument with automatic bass performance circuitry
US3707594A (en) * 1970-03-10 1972-12-26 Nippon Musical Instruments Mfg Automatic rhythm sound producing device adapted for use with keyboard musical instruments
US3696200A (en) * 1970-10-27 1972-10-03 Baldwin Co D H Automatic sequential voicing
US3688009A (en) * 1970-11-13 1972-08-29 Seeburg Corp Musical device for automatically producing tone patterns
US3878751A (en) * 1970-11-30 1975-04-22 Opsonar Organ Corp Endless record audio signal generator and means for playing record
US3715442A (en) * 1970-12-15 1973-02-06 A Freeman Chord tone generator control system
US4137809A (en) * 1970-12-30 1979-02-06 D. H. Baldwin Company Arpeggio system for electronic organs
US3711618A (en) * 1971-02-22 1973-01-16 A Freeman Automatic harmony apparatus
US3760088A (en) * 1971-04-27 1973-09-18 Nippon Musical Instruments Mfg Automatic rhythm playing apparatus
US3706837A (en) * 1971-06-17 1972-12-19 Wurlitzer Co Automatic rhythmic chording unit
US3740449A (en) * 1971-06-24 1973-06-19 Conn C Ltd Electric organ with chord playing and rhythm systems
US3795755A (en) * 1971-06-24 1974-03-05 Nippon Musical Instruments Mfg Automatic accompaniment device of an electronic musical instrument
US3813472A (en) * 1971-08-20 1974-05-28 Nippon Musical Instruments Mfg Electronic musical instrument with rhythm selection pulse generator
US3764721A (en) * 1971-09-30 1973-10-09 Motorola Inc Electronic musical instrument
US3708604A (en) * 1971-11-15 1973-01-02 Jasper Electronics Mfg Corp Electronic organ with rhythmic accompaniment and bass
US3789718A (en) * 1971-12-30 1974-02-05 Baldwin Co D H Voltage controlled chord organ
US3832479A (en) * 1972-03-01 1974-08-27 L Aliprandi Electronic apparatus for programmed automatic playing of musical accompaniment systems
US3803970A (en) * 1972-04-19 1974-04-16 Nippon Musical Instruments Mfg Automatic rhythm device with start and stop controller for clock oscillator and a gate
US3806624A (en) * 1972-07-14 1974-04-23 Chicago Musical Instr Co Discovery in keying circuit for a musical instrument
US3766305A (en) * 1972-07-17 1973-10-16 Hammond Corp D.c. keyed high low select preference system for polyphonic electrical musical instruments
US3872765A (en) * 1972-12-28 1975-03-25 Pioneer Electronic Corp Chord selection apparatus for an electronic musical instrument
US3921491A (en) * 1973-04-25 1975-11-25 Alfred B Freeman Bass system for automatic root fifth and pedal sustain
US3839592A (en) * 1973-04-30 1974-10-01 A Freeman Plural mode automatic bass system with pedal sustain
US3886834A (en) * 1973-05-11 1975-06-03 Nippon Musical Instruments Mfg Electronic musical instrument capable of modulation controlling a second keyboard section tone signal in accordance with a first keyboard section tone signal
US3962945A (en) * 1973-06-22 1976-06-15 Wade E. Creager Foot actuated electronic organ
US3871262A (en) * 1973-12-14 1975-03-18 Kimball Int Electronic organ having delayed fill in
US3889568A (en) * 1974-01-31 1975-06-17 Pioneer Electric Corp Automatic chord performance apparatus for a chord organ
US3918341A (en) * 1974-03-25 1975-11-11 Baldwin Co D H Automatic chord and rhythm system for electronic organ
USRE29144E (en) * 1974-03-25 1977-03-01 D. H. Baldwin Company Automatic chord and rhythm system for electronic organ
US4019417A (en) * 1974-06-24 1977-04-26 Warwick Electronics Inc. Electrical musical instrument with chord generation
US4059039A (en) * 1974-06-24 1977-11-22 Warwick Electronics Inc. Electrical musical instrument with chord generation
JPS5111431A (enrdf_load_stackoverflow) * 1974-07-18 1976-01-29 Nippon Musical Instruments Mfg
US4043242A (en) * 1975-12-10 1977-08-23 Cavicchio Raymond A Circuit for musical instrument
US4135423A (en) * 1976-12-09 1979-01-23 Norlin Music, Inc. Automatic rhythm generator
FR2376482A1 (fr) * 1976-12-29 1978-07-28 Philips Nv Dispositif pour le jeu automatique d'un accompagnement tonal dans des instruments de musique electroniques
US4204453A (en) * 1976-12-29 1980-05-27 U.S. Philips Corporation Device for automatic tonal accompaniment in electronic musical instruments
US4182211A (en) * 1977-09-21 1980-01-08 Siemens Aktiengesellschaft Information transmission system
US4476763A (en) * 1979-04-12 1984-10-16 Matsushita Electric Industrial Co., Ltd. Electronic musical instrument
JPS56115187U (enrdf_load_stackoverflow) * 1980-12-11 1981-09-04

Also Published As

Publication number Publication date
NO128684B (enrdf_load_stackoverflow) 1973-12-27
DE2056509A1 (de) 1971-06-16
FR2069287A5 (enrdf_load_stackoverflow) 1971-09-03
GB1272345A (en) 1972-04-26
SE366600B (enrdf_load_stackoverflow) 1974-04-29
ZA707571B (en) 1971-08-25
JPS5325246B1 (enrdf_load_stackoverflow) 1978-07-26
NL7016394A (enrdf_load_stackoverflow) 1971-05-14

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