The Kingston Trio have this on one of their albums from the early ‘60s, I believe it was “College Concert” album.
Laurie, you might want to correct the top frequency statement. 1025 Hertz (Hz) is an audible tone. You might want to add a prefix, like GHz, or THz (Or higher) to the statement.
The Kingston Trio have this on one of their albums from the early ‘60s, I believe it was “College Concert” album.