Editing Leon Theremin (section)

==United States==
[[File:Rockmore and Termen.jpg|thumb|[[Clara Rockmore]] on her 18th birthday and Leon Theremin, 1929]]
After being sent on a lengthy tour of Europe starting 1927–including London, Paris, and towns in Germany<ref name="1983 memoir">[http://www.oddmusic.com/theremin/theremin_bio.html Leon Theremin – a short memoir] Lev Termen, 1983-01-12.</ref><ref>[[#G|Glinsky p.&nbsp;340]].</ref> – during which he demonstrated his invention to full audiences, Theremin went to the United States arriving on 30 December 1927 with his first wife Katia.<ref name="mattis1989">Mattis 1989</ref> He performed the theremin with the [[New York Philharmonic]] in 1928. He patented his invention in the United States in 1928<ref>[[#G|Glinsky p.&nbsp;346]].</ref><ref>{{US patent|1661058}}.</ref> and then granted commercial production rights to [[RCA]].

Theremin set up a laboratory in New York in the 1930s, where he further refined the theremin and experimented with other inventions and new electronic musical instruments. These included the [[Rhythmicon]] commissioned by the composer [[Henry Cowell]].

In 1930, ten thereminists performed on stage at [[Carnegie Hall]]. Two years later, Theremin conducted the first-ever electronic orchestra, featuring the theremin and other electronic instruments including a "[[fingerboard]]" theremin which resembled a [[cello]] in use (Theremin was a cellist<ref>{{cite web|url=http://www.bbc.co.uk/programmes/b0076nqv|title=Good Vibrations: The Story of the Theremin - BBC Radio 4|website=BBC}}</ref>). In 1931, he worked with composer [[Henry Cowell]] to build an instrument called the [[rhythmicon]]. They were lucky to have gotten it to market as quickly as they did as brothers [[Otto Miessner|Otto]] and [[Benjamin Miessner]] had almost completed a similar instrument with the same name.<ref>{{cite dictionary|url=http://www.oxfordmusiconline.com/public/page/rhythmicon|title=Rhythmicon|dictionary=Oxford Music Online|url-status=dead|archive-url=https://web.archive.org/web/20170801234100/http://www.oxfordmusiconline.com/public/page/rhythmicon|archive-date=2017-08-01}}</ref>

Theremin's mentors during this time were some of society's foremost scientists, composers, and musical theorists including composer [[Joseph Schillinger]] and physicist (and amateur violinist) [[Albert Einstein]].{{Clarify|date=March 2008}} <!-- didn't Glinsky show Theremin confused or made up the Einstein collaboration? See Glinsky prelude page 5. -->At the time, Theremin worked closely with fellow Soviet émigré and theremin [[virtuoso]] [[Clara Rockmore]] (née Reisenberg). Theremin had several times 
proposed to her, but she chose to marry attorney Robert Rockmore, and thereafter used his name professionally.<ref>{{Cite web|url=http://www.nadiareisenberg-clararockmore.org/clara_biography.htm|title=The Nadia Reisenberg & Clara Rockmore Foundation|access-date=2011-05-18|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304085547/http://www.nadiareisenberg-clararockmore.org/clara_biography.htm|url-status=dead}}</ref>

The U.S. [[Federal Bureau of Prisons]] hired Theremin to build a metal detector for [[Alcatraz Federal Penitentiary]].<ref>{{Cite web |last=Fischer |first=Benjamin B. |title=Leon Theremin – CIA nemesis |url=https://www.cryptomuseum.com/covert/bugs/thing/files/theremin_cia.pdf}}</ref><ref>{{cite web|url=https://www.theguardian.com/music/2015/aug/22/invisible-instrument-theremin|title=The invisible instrument: the theremin|first=Sean|last=Michaels|date=22 August 2015|website=The Guardian}}</ref><ref>{{cite web|url=https://www.independent.co.uk/news/people/obituary-leon-theremin-1506371.html|title=Obituary: Leon Theremin|website=[[Independent.co.uk]] |date=24 November 1993}}</ref><ref>{{cite web|url=https://www.indyweek.com/indyweek/the-theremins-story-is-stranger-than-fiction/Content?oid=4192744|title=The theremin's story is stranger than fiction|first=Brian|last=Howe}}</ref> He was interested in a role for the theremin in dance music. He developed performance locations that could automatically react to dancers' movements with varied patterns of sound and light.

The Soviet consulate had apparently demanded he divorce Katia{{Citation Needed|date=November 2024}}. Afterwards, while working with the [[American Negro Ballet Company]], the inventor married a young [[African-American]] [[prima ballerina]] [[Lavinia Williams]].<ref name="mattis1989"/> Their marriage caused shock and disapproval in his social circles, but the ostracized couple remained together.<ref>[[#G|Glinsky p.&nbsp;177]].</ref>