New York thereminist, Dalit Warshaw, gave a concert last Saturday (July 13, 2013) at SPECTRUM (Lower East Side Manhattan). She has posted several of the selections she played to her YouTube channel and they can be accessed at the following URL:
http://www.youtube.com/user/varsoviamusic
One of the numbers posted from the concert is SUMMERTIME by Gershwin but for some reason there was a violation of copyright claim on it and the audio has been muted by the YT police. This seems very odd. Anyone have any idea why this would happen? Although it has been more than 75 years since the death of George Gershwin (the number of years it takes for a composition to pass into the public domain) the writer of the song's lyrics, George's brother Ira, did not die until 1983, so presumably the copyright will be valid until 2058.
Still, there are dozens of theremin renditions of SUMMERTIME on YT that have not been accused of copyright violation. Why was this particular performance targeted?