Editing Telharmonium (section)

== Background ==
*1809, Prussian [[Samuel Thomas Soemmerring]] created an electrical telegraph that triggered an array of tuned bells<ref name=120years />
*In 1885, [[Hermann Helmholtz]]’s ‘On the Sensations of Tone’ (1862) appeared in English<ref name=120years />
*[[Elisha Gray]]’s ‘Musical Telegraph’ of 1874<ref name=120years />
*In Paris, [[Clément Ader]] created the ‘Théâtrophone’ in 1881<ref name=120years /> using two lines to pass music from a local theater to two separate phone receivers, dubbed "binauriclar auduition", the first "stereo" concert via telephone.
*In 1890 AT&T ceased work on a service to provide music,{{Clarify|reason=AT&T was founded in 1895|date=April 2025}} admitting difficulty with sound quality.<ref>{{Cite web |date=2021-01-21 |title=The Telharmonium |url=https://www.sothismedias.com/home/the-telharmonium |access-date=2024-04-21 |archive-url=https://web.archive.org/web/20210121150317/https://www.sothismedias.com/home/the-telharmonium |archive-date=2021-01-21 }}</ref><ref>{{Cite web |title=Thaddeus Cahill's "Music Plant" The Telharmonium and the promise of electrical music on tap |url=https://www.cabinetmagazine.org/issues/9/dewan.php |access-date=2024-04-21}}</ref><ref>{{Cite web |title=Thaddeus Cahill's Teleharmonium |url=https://www.synthmuseum.com/magazine/0102jw.html |access-date=2024-04-21}}</ref><ref>{{Cite web |title=The Telharmonium: Electricity's Alliance With Music |url=https://babel.hathitrust.org/cgi/pt?id=uc1.b3274979&seq=434 |author=Thomas Commerford Martin|access-date=2024-04-21}}</ref><ref>{{Cite web |title=News and Entertainment by Telephone (1876-1930) |url=https://earlyradiohistory.us/sec003.htm |access-date=2024-04-21}}</ref>
*In 1893 Hungarian [[Tivadar Puskás]] created the ‘Telefonhírmondó’ or ‘Telephone Herald’<ref name=120years />