The
main difference between the two pieces’ thematic structures is that “Hedwig’s
Theme” incorporates more themes than the A and B motifs shown in the previous
post, while “Dance of the Sugar Plum Fairy” contains only the A and B motifs as
its theme.
Another
difference is the role of the break that I mentioned in the previous post.
After one repetition of the A-B motifs, both pieces have a short break from the
two motifs. In “Dance of the Sugar Plum Fairy,” the break reintroduces the
celesta with a solo, while in “Hedwig’s Theme,” the break does not reintroduce
the celesta, but rather transitions into another, more intense version of the
A-B motifs.
Additionally,
both pieces are composed in the key of G major; however, accidentals cause them
to deviate from the original major key. “Hedwig’s Theme” has many E minor
chords that contribute to the mysterious mood of the piece (“John Williams
Themes”).
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Image taken from: (“John Williams Themes”) http://www.filmmusicnotes.com/john-williams-themes-part-6-of-6-hedwigs-theme-from-harry-potter/
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