(Aug 16, 2019)
Popular for 42 years…
The original music to Star Wars appeared in 1977, and this march, the Darth Vader March, uses exactly three minor chords in the theme. The theme modulates to several keys. It starts out G minor, then moves to A minor, Bb minor, B minor, C minor, then back to G minor, but in each key the chords are the same: Im, bVIm and bVm
In the key of G minor they are: Gm, Ebm, C# or Db minor, depending on spelling.
So it’s a piece using all minor chords, very simple. Two of the chords, Gm and Ebm for example, are morphs of each other, where one note stays the same (common tone) while the other two slide in opposite directions.
John Williams, the composer of Star Wars, used many of the orchestral effects of Richard Strauss. Before movies were invented, Strauss wrote the kind of music now used in film scores.