Tag: John M Hanert
The ‘Novachord’ Laurens Hammond, John Hanert & C.N.Williams. USA, 1939
The Hammond Novachord was manufactured by the Hammond Organ Co in the USA from 1939 to 1942, designed by Laurens Hammond, John Hanert and C.N.Williams. A total of 1096 models were built.The Novachord was a polyphonic electronic organ and was Hammonds first electronic tube based instrument – a departure from his usual tone-wheel designs. The Novachord was a much more complex instrument than the Solovox Hammond’s other electronic tube-based instrument. The Novachord had 169 vacuum tubes to control and generate sound and was played on a seventy two note keyboard with a simple pressure sensitive system that allowed control over the attack and timbre of the note. The sound was produced by a series of 12 oscillators that gave a six octave range using a frequency division technique; the Novachord was one of the first electronic instruments to use this technique which was later became standard in electronic keyboard instruments.
The front panel of the instrument had a series of 14 switch-able rotary knobs to set the timbre, volume, ‘resonance’,bass/treble, vibrato (six modulation oscillators were used) and ‘brightness’ of the sound. A set of 3 foot operated pedals controlled sustain,and volume the third pedal allowing control of the sustain by either foot. The final signal was passed to a pre-amplifier and then to a set of internal speakers. The Novachord was able to produce a range of sounds imitating orchestral instruments such as the piano, harpsichord, stringed and woodwind instruments as well as a range of it’s own new sounds. In May 1939 ‘The Novachord Orchestra’ of Ferde Grofé performed daily at the Ford stand at the New York World Fair with four Novachords and a Hammond Organ and in Adrian Cracraft’s ‘All Electronic Orchestra’, the Novachord also featured in several film scores (Hans Eisler’s “Kammersinfonie” 1940) but seems to have fallen from favour due to the instability of it’s multiple tube oscillators and playing technique. The Novachord was discontinued in 1942. A Hammond employee comments:
“The Novachord made beautiful music if played well, but it was not well adapted either to either an organists style or a pianists style. Thus it required development of a specific style, which not many musicians were prepared to do. it also had technical problems, requiring frequency adjustments to keep it operating chiefly because the frequency dividers and electronic components before the war were not nearly as good as those available in later years. The hammond Organ Company could have revived it after the war, and could have made it better in light of available technology at the time, but sales had been disappointing ad so it was not considered a good commercial product”
The ‘Solovox’, Hammond Organ Co, USA, 1940
Solovox Production Models
- Model J (1940–1946)
- Model K (1946–1948)
- Model L (1948–1950)
Solovox patent files:
‘Hanert Electric Orchestra’ John M. Hanert, USA, 1945
Once the phonograph had supplanted radio and the pianola as the predominant format for music sales in the 1930s, attention turned to refining and accelerating the production and manufacture of records. 1Dolan, Brian. Inventing Entertainment: The Player Piano and the Origins of an American Music Industry. Rowman & Littlefield Publishers Inc 2009. Hammond Organ Inc’s chief Designer John M. Hanert – who was responsible for the design of the hugely successful tonewheel ‘Hammond Organ’ series as well as the vacuum tube based ‘Solovox’ and ‘Novachord’ instruments – was contemplating a self-contained device that could be used as a composition system, sound synthesiser and gramophone production tool:
“My invention relates generally to apparatus for production as sound or as a signal for recording purposes, without the employment of musicians in anyway whatsoever.” 2 John M Hanert US Patent 2,541,051 Apparatus for automatic production of music,Feb. 13, 1951.
The result of Hanert’s experiment was the Electric Automatic Orchestra; a large, room sized machine installed at the Hammond Instrument Inc. sound studios at 2915 North Western Ave Chicago Illinois. The basic function of the machine were divided into three parts; a composition ‘Time Sequence’ table where the composer could write musical notation into the machine, a synthesis module which created sounds from the notation, and an output – in this case a lacquer disc-lathe to cut master recordings.
The ‘Time Sequence’ section was an eighteen meter table – extendable to the amount of room-space available – covered with overlapping ‘record notation’ cards of approximately 28 X 30 cm. These cards could be drawn on with conductive graphite or aquadag marks representing musical information. Above the table travelled a wheeled electric-motor driven ‘scanning carriage’ equipped with multiple phosphor-bronze contact brushes. When the brushes made contact with the conductive graphite marks on the cards below, an electronic signal was generated that triggered the relevant musical reaction in the sound generating part of the instrument. (Hanert also provided an alternate photoelectric set of scanning heads which could replace the contact brushes.)
Hanert’s design enabled the composer to a create ‘perfect’ compositions by writing, erasing and re-writing the music on the ‘Time Sequence’ table – which could be done on or off-site or as required. Once this perfect composition had been achieved, the machine could make a final run and cut a master recording to disc to be used for mass production.3 Rhea, Tom. ‘The Hanert Synthesizer’ Electronic Perspectives, Contemporary Keyboard September 1979 p78.
The record notation cards were pre-printed with a grid like template and could be marked to represent individual note pitch – measured in quarter tones, envelope, timbre, vibrato, position in the bar and volume as well as overall instrument volume. The final tempo of the piece could be controlled by simply varying the speed of the rail driven scanning carriage as it travelled along the table or paused, reversed or ‘looped’ by control marks on the cards. The length of the table defined the length of the piece, which on this model, consisted of 39 cards giving a maximum playing length of 96 bars.4T.L.Rhea:”The Evolution of Electronic Musical Instruments in the United States” (diss., George Peabody College, Nashville, Tenn, 1972)
The tones themselves were created by six separate banks of polyphonic vacuum tube generators similar in design to Hanert’s Novachord (USA, 1940). The instrument was also able to create percussive xylophone and drum sounds created by random (white noise) generators. Combinations of sounds could be defined on the notation cards allowing the composer to immediately switch instrument sounds as the piece progressed.
Hanert’s instrument was unique in that for the first time a composer/producer could work in a nonlinear fashion: the composition cards could be erased or deleted simply by rubbing out the graphite mark or removing the card. Cards could be arranged in any order, enabling the composer to mix, transpose and reverse music themes and sounds, instrumentation could be changed at any point or applied to any written part of the composition. And, Hanert’s machine allowed the composer/producer the ability to monitor the results of the editing almost immediately. Hanert compared this facility to the practice of a visual artist:
The difficulties inherent in the orchestral production of a composition may be compared to those which would confront an artist who found it necessary in painting a picture to destroy the complete or partially complete picture he was painting every time he became dissatisfied with any slight detail of the picture. The painter is not subject to such stringent regulation but instead merely repaints such minor portion of the whole picture which does not represent the subject being painted sufficiently accurately to meet his artistic approval…In the method and apparatus of this invention the composer, arranger, or conductor has at his command means for controlling the quality of each note, its intensity, intensity envelope, the degree of accent, duration, and tempo without necessarily affecting any other note or tone of the composition.5US Patent 2,541,051A 1945,4.
Despite its innovative qualities, the Electric Automatic Orchestra was never used commercially as Hanert had intended. In fact it seems that it was only ever used by Hanert himself and was not taken seriously by the Hammond company – who tended to humour Hanert’s ‘technical eccentricities’ in order to maintain his interest in more mundane but commercial designs. In addition to Hammond’s lukewarm support, the commercial failure of the project was also down to a combination of the synthetic nature of its sound, the inability of composers of the day to grasp the new musical paradigm the instrument offered plus the ever increasing capability and quality of recording technology– microphones, mixing desks, magnetic pick-ups, tape recorders – made the need for such a solution less pressing. The Electric Automatic Orchestra was sidelined and eventually mothballed by the Hammond company sometime during the 1950s.
Shortly after the disappearance of Hanert’s machine, David Sarnoff, chairman of RCA corporation, commissioned a self-contained commercial music production machine that could mathematically analyse and re-synthesise pop music.
“Composers don’t need to be able to play an instrument because our synthesizer will allow them to create any kind of music they want…Musicians aren’t required if you have our synthesizer.”6 David Sarnoff, chairman of RCA during the 1950s. Excerpt From: Vail, Mark. The Synthesizer, Oxford University Press, 2014, p271.
What became known of as the RCA Synthesiser (the first time ‘Synthesiser’ was used in a musical context) was installed at the Columbia–Princeton Electronic Music Center and directly referenced Hanert’s work (8). The machine used the same, though perhaps less flexible structure; a three stage process of music production – in this case a paper punch roll for composition, multiple banks of vacuum tubes for sound synthesis, and the same lacquer disc lathe for musical output.
Biography: John Marshall Hanert
John Marshall Hanert was born into a German-American family on 18th March 1909 in Milwaukee, Wisconsin. In 1932 Hanert was awarded a B.S. in Engineering and a BSE in Physics at The University of Michigan. An accomplished organist, Hanert had a special interest in electronic musical instruments and after graduation began working with Richard Ranger – inventor of the Rangertone Organ amongst other electronic musical devices – in New York on a Photo-Electrical musical instrument. In 1934 Hanert was appointed as the Head of Research at the Hammond Organ Inc in Chicago where he spent the rest of his life as the chief designer of all of Hammond’s instruments; Hanert became known as the musically untrained Laurens Hammond’s ‘Ears’.Hanert was the co-inventor on the first Hammond tone-wheel organ and inventor of the Solovox (1938) and Novachord (1939–42) one of the world’s first commercial synthesisers as well as many patents for vibrato and reverberation audio processors. Hanert continued working at the company After Laurens Hammond’s retirement in 1958 until he died on 23rd June 1962 at the age of 53 in a car accident near New Munster Wisconsin.7‘The Michigan Alumnus’ vol LXIX 1962-1963 page 63. Private collection of Douglas Jackson 2017.
- 1Dolan, Brian. Inventing Entertainment: The Player Piano and the Origins of an American Music Industry. Rowman & Littlefield Publishers Inc 2009.
- 2John M Hanert US Patent 2,541,051 Apparatus for automatic production of music,Feb. 13, 1951.
- 3Rhea, Tom. ‘The Hanert Synthesizer’ Electronic Perspectives, Contemporary Keyboard September 1979 p78.
- 4T.L.Rhea:”The Evolution of Electronic Musical Instruments in the United States” (diss., George Peabody College, Nashville, Tenn, 1972)
- 5US Patent 2,541,051A 1945,4.
- 6David Sarnoff, chairman of RCA during the 1950s. Excerpt From: Vail, Mark. The Synthesizer, Oxford University Press, 2014, p271.
- 7‘The Michigan Alumnus’ vol LXIX 1962-1963 page 63. Private collection of Douglas Jackson 2017.