The baroque classical music played in this episode is "Piano Concerto in A Minor Op 54" composed by classical German composer Robert Alexander Schumann (1810-1856). This final episode to the original Ultra Seven TV series became most notable for its dramatic use of this classical piece, in the scene where Dan reveals to Anne that he is Ultra Seven, when Ultra Seven races to rescue Amagi from the Ghos Aliens, and during the spectacular climactic showdown between Ultra Seven and the now-cybernetic monster Pandon.
Windom is destroyed in this episode. However, the robot monster was not gone for good, for he was apparently rebuilt and returned in one of the 1990s direct-to-video Ultra Seven specials, as well as in Ultraman Mebius (and was still the underdog!).