Complex sentence: The credits of the film within a film makes use of "The Merry-Go-Round Broke Down" (1937), but the familiar tune is simplified, giving the impression that it is played by an amateur.
Split into simpler sentences: The credits of the film within a film makes use of "The Merry-Go-Round Broke Down" (1937), but the familiar tune is simplified. Giving the impression that it is played by an amateur.