"The concerto was recorded in London the day after a Royal Festival Hall performance. The tape was used for a BBC broadcast, and possibly broadcast elsewhere, but did not, as planned, appear as a recording. Just why is not entirely clear. The project was set aside and mostly forgotten, until Bernard Herrmann, shortly before his death, asked Louis Kaufman if he knew of any copies of the tape. Kaufman remembered he had one and with Herrmann's encouragement the project came alive again."

The Citadel LP was probably released in the 1970's, and the MHS LP was probably released in the late 1970's.