One of the main reasons the theme is featured in so many tracks is that Lean had hired an impromptu balalaika orchestra from several Russian Orthodox Churches in Los Angeles; the musicians could only learn 16 bars of music at a time, and could not read written music. Edgar Stanistreet, a street musician from Philadelphia, claimed that he was asked to play the song over the telephone to an MGM executive, and was later taken into the studio to record. He was not credited, however.