accessible for research. Accomplishments Theory, circuits and devices to the sound production and sound figuration. Development and building of monophonic and polyphonic electronic organs/synthesizers and the sound processors: Warbo Formant Organ (1937) one of the first key-assignment polyphonic synthesizer with formant filters and dynamic envelope shaping, designed and built by Bode with the funding support provided by Christian Warnke. (Note: "Warbo" is acronym of Warnke-Bode) Melodium (1938) monophonic touch-sensitive keyboard instrument developed with Oskar Vierling, used in film scores and "light" music Multimonica (1940, Hohner) dual manual electronic/acoustic hybrid keyboard instrument, consists of monophonic sawtooth wave oscillator (upper) and air-driven reed harmonium (lower) Melochord (1947–1949) 37-key monophonic keyboard with dynamic envelope wave shaping, volume pedal controller, and transpose switches to cover seven octaves. Later a second keyboard was added to control the timbre. For the (AWB) in Germany, Estey Organ Company in Brattleboro, Vermont, USA, and others: Polychord (1950) Polychord III (c. 1951, Apparatewerk Bayern) Bode Organ (1951), later known as Estey Electronic Organ, based on Polychord III Cembaphon (1951), an electric harpsichord using electrostatic pickup (1953, Jörgensen Elektronic), under license by Jörgensen Elektronic in Düsseldorf, apparently the only one of this type built (a portable electronic organ based on vacuum tube technology) Concert Clavioline (1953) 6-octave model (by transpose buttons) of Clavioline (1947) originally developed by Constant Martin. (portable monophonic keyboard based on vacuum tubes) Estey Electronic Organ model S and AS-1 (1954) During his time as an executive of the Wurlitzer Organ Co.: A first transistor model of the Wurlitzer Electric Piano (1960) Modular Synthesizer / Sound Processor (1959–1960) Voltage-controlled oscillator (VCO) (1960) As the products of Bode Sound Company: Bode Ring Modulator (1964) Bode Frequency Shifter (1964) Bode Vocoder 7702 / Moog Vocoder (1977) Note that above three products were also licensed to Moog Music as a part of the Moog Synthesizer. Bode Barberpole Phaser (1981) Bode Feedback Stabilizer (1982) Notable users The Melochord at the WDR Studio in Cologne was used by: Werner Meyer-Eppler in his composition Klangmodelle (1951) and lectures at Darmstadt New Music Summer School, Herbert Eimert and Robert Beyer in their joint compositions Klangstudie I (1951) and Klangfiguren II (c.1951), and György Ligeti in his composition Glissandi (1957). But in the case of Karlheinz Stockhausen, a student of Meyer-Eppler at the University of Bonn in 1954–56, his only use of the melochord was in a failed experiment with a ring modulator. After this,