Prelude in G minor (Rachmaninoff)

Prelude in G minor, Op. 23, No. 5, is a music piece by Sergei Rachmaninoff, completed in 1901. It was included in his Opus 23 set of ten preludes, despite having been written two years earlier than the other nine. Rachmaninoff himself premiered the piece in Moscow on February 10, 1903, along with Preludes No. 1 and 2 from Op. 23.

The Prelude's taut structure is in ternary form, consisting of an opening "A" section with punctuated sixteenth-note chords (marked Alla marcia), a more lyrical and melancholy "B" section with sweeping arpeggios in the left hand (marked Poco meno mosso), a transition into the original tempo, and a recapitulation of the initial march.

The Alla marcia section is in itself in ternary ABA form. Within the first three measures of the Prelude, Rachmaninoff introduces the unifying factors of the piece (notwithstanding the Poco meno mosso section). First, the chordal march of measure one; second, the fragment on the second half of the beat in measure two; third, the fragment on the second half of beat two in measure three.

Measures 2 and 3

Measures 1-9 expand on the march theme. Following a cadence in the dominant, the section repeats in measures 10-16 with slight alterations and concludes in a G minor perfect cadence.

The "B" subsection of the Alla marcia section (measures 17-24) mirrors the rhythm of the first measure, presenting a sequence of related chords beginning with E flat.

Measures 17 and 18

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