1876 : Alexander Graham Bell completed his designs for the telephone. This device contributed to electric technologies that would subsequently be used in music technology)
1877 : The microphone was first invented by David Edward Hughes, despite Thomas Edison being granted the patent. Hughes discovered that electrical currents varied when sound vibrations were passed through carbon packed into a confined space. His first broadcast was of scratching insects.
1910 : Utah Mormon and Nathaniel Baldwin construct the first set of headphones from an operator's headband and copper wire. Baldwin failed to commercialize the opportunity through attracting orders from private companies and even the Smithsonian Institution, though the Navy purchased hundreds of sets of them in anticipation of possible world war.
1917 : Leon Theremin invented the prototype of the Theremin, an instrument which is played without touching it, as it detects the proximity of the hands
1921 : First commercial AM radio Broadcast made by KDKA, Pittsburgh, PA
1925 : The Victor Orthophonic Victrola Phonograph was invented. A far superior product in comparison to other phonograph manufacturers was an acoustic sound design that was far superior to current offerings.
1926 : Jorge Mager presented his electronic instruments, in the Spharaphon line
1927 : Pierre Toulon and Krugg Bass invent the Cellulophone
1928 : René Bertrand invents the Dynaphone
1928 : Fritz Pfleumer patents a system for recording on paper coated with a magnetizable, powdered steel layer, precursor to tape
1931 : RCA-Victor began manufacturing 33 1/3 vinyl record players. The Great Depression unfortunately made the market unreceptive due to their high cost and initial marketing of these devices being as "Program Transcriptions", rather than for listening to music. Despite their existence, it was not until 1948 that Columbia Records reintroduced this format.
1931 : Alan Blumlein, working for EMI in London, in effect, patents stereo
1932 : Nicholas Langer built the Emicon
1932 : Yevgeny Alexandrovith Sholpo constructed the Variophone
1932 : Harry F. Olson patents the first cardioid ribbon microphone
1938 : Benjamin B. Baur of Shure Bros. engineers a single microphone element to produce a cardioid pickup pattern (it picks up less sounds from the sides of the microphone, reducing unwanted sound pickup)
1939 : Homer W. Dudley invented the Parallel Bandpass Vocoder
1940 : Karl Wagner early development of Voice Synthesizers, precursors of the vocoder
1940 : Homer W. Dudley introduced the Voder Speech Synthesizer
1940 : The Hammond Organ Company releases the Solovox
1941 : Commercial FM broadcasting begins in the US
^一時代を画する新楽器完成 浜松の青年技師山下氏 [An epoch new musical instrument was developed by a young engineer Mr.Yamashita in Hamamatsu]. Hochi Shimbun (in Japanese). 1935-06-08. Archived from the original on 2012-03-12. Retrieved 2017-04-27.
^新電氣樂器 マグナオルガンの御紹介 [New Electric Musical Instrument – Introduction of Magna Organ] (in Japanese). Hamamatsu: 日本樂器製造株式會社 (Yamaha). October 1935. 特許第一〇八六六四号, 同 第一一〇〇六八号, 同 第一一一二一六号
^Aspray, William (1994-05-25). "Oral-History: Tadashi Sasaki". Interview #211 for the Center for the History of Electrical Engineering. The Institute of Electrical and Electronics Engineers, Inc. Retrieved 2013-01-02.
^Mark Vail, The Synthesizer: A Comprehensive Guide to Understanding, Programming, Playing, and Recording the Ultimate Electronic Music Instrument, page 277, Oxford University Press
^"Firstman International". SYNRISE (in German). Archived from the original on 2003-04-20. FIRSTMAN existiert seit 1972 und hat seinen Ursprung in Japan. Dort ist dieFirma unter dem Markennamen HILLWOOD bekannt. HILLWOOD baute dann auch 1973 den quasi ersten Synthesizer von FIRSTMAN. Die Firma MULTIVOX liess ihre Instrumente von 1976 bis 1980 bei HILLWOOD bauen.","SQ-10 / mon syn kmi ? (1980) / Monophoner Synthesizer mit wahrscheinlich eingebautem Sequenzer. Die Tastatur umfasst 37 Tasten. Die Klangerzeugung beruht auf zwei VCOs.
^Pinch, T. J.; Bijsterveld, Karin (July 2003). ""Should One Applaud?" Breaches and Boundaries in the Reception of New Technology in Music". Technology and Culture. 44 (3): 536–559. doi:10.1353/tech.2003.0126. S2CID132403480. By the time the first commercially successful digital instrument, the Yamaha DX7 (lifetime sales of two hundred thousand), appeared in 1983 ...
