Prelude in G-flat major (Rachmaninoff)
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It is written in conventional ternary form. The main theme in the left hand is accompanied by syncopated chords in the right hand; it begins at measure 2 and ends at measure 6. A parallel period follows from measures 6–11, ending on an imperfect cadence. In measures 11–18, a sequential period that is based on the rhythm of the main theme follows. Soprano and bass track each other in this section:
The "B" section, from measures 18–34, employs sequential fragments of the "A" section. Syncopated chords from the "A" section are elongated. Rising chromatic patterns are present in both the bass and treble. Consider measures 18-20 and 23-25:
- Norris, Geoffrey, Rachmaninoff, Schirmer Books, 1993 (pg. 170).