 The tune played on the gramophone during the Boggart scene is NOT  Louis Prima (qv)s "Sing, Sing, Sing". The actual song, "Swing,  Swing, Swing" written by John Williams (I) (qv), is from the film  _1941 (1979)_ (qv) and is also featured in  _"X Files, The" (1993) {Triangle (#6.3)}_ (qv) during the sixth  season.