Katana VentraIP

Telharmonium

The Telharmonium (also known as the Dynamophone[1]) was an early electrical organ, developed by Thaddeus Cahill c. 1896 and patented in 1897.[2][3][4] The electrical signal from the Telharmonium was transmitted over wires; it was heard on the receiving end by means of "horn" speakers.[5]

Like the later Hammond organ, the Telharmonium used tonewheels to generate musical sounds as electrical signals by additive synthesis.[5] It is considered to be the first electromechanical musical instrument.

1809, Prussian created an electrical telegraph that triggered an array of tuned bells[6]

Samuel Thomas Soemmerring

In 1885, ’s ‘On the Sensations of Tone’ (1862) appeared in English[6]

Hermann Helmholtz

’s ‘Musical Telegraph’ of 1874[6]

Elisha Gray

In Paris, created the ‘Théâtrophone’ in 1881[6] using two lines to pass music from a local theater to two separate phone receivers, dubbed "binauriclar auduition", the first "stereo" concert via telephone.

Clément Ader

In 1890 AT&T ceased work on a service to provide music, admitting difficulty with sound quality.[8][9][10][11]

[7]

In 1893 Hungarian created the ‘Telefonhírmondó’ or ‘Telephone Herald’[6]

Tivadar Puskás

Trautonium

Shepard, Brian (1 January 2013). Refining Sound: A Practical Guide to Synthesis and Synthesizers. . p. 11. ISBN 978-0-19-992296-3.

Oxford University Press

Holmes, Thomas B. Electronic and Experimental Music. New York: , 1985. pp. 32-41 ISBN 9780684181356

Charles Scribner's Sons

vol 96 #10 9th March 1907

Scientific American

New Music for an Old World . v.27 1906 May-Oct.

McClure's

The Telharmonium: A History of the First Music Synthesizer, by Thomas L Rhea. Computer Music Journal, vol. 12 #3, 1988

review

(v5 #5, June 1907) The Home Publishing Company, 503-622pp

Gunter’s Magazine

https://magneticmusic.ws/mmTelHallProg1.pdf

https://www.britannica.com/art/telharmonium

Official U.S. Patent

https://magneticmusic.ws/mmvideo.htm