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''Prelude in G minor'', Op. 23, No. 5, is a music piece by Sergei Rachmaninoff, completed in 1901.〔Norris, Geoffrey, ''Rachmaninoff'', Schirmer Books, 1993 (pg. 170).〕 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.〔''Id.''〕 == Structure == 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. 300px 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. 300px Measures 17 and 18 Prior to the lyrical "B" section, in measures 29-35. 300px Measures 29 and 30 In contrast to the ''Alla marcia'', the "B" section introduces a lyrical chordal melody over an extended arpeggiated figure. Beginning in measure 35, a two-measure phrase is repeated and then serially extended in measures 39-41. A counter melody appears at measure 42 in the middle voice, intensifying the passage. 250px Measure 35 250px Measure 36 250px Measure 42 Following the middle section, the Prelude transitions to a recapitulation of the march section by gradual increases in tempo and dynamics. The section uses of chromatically upward moving chords following embellished diminished seventh figures. 250px Measure 72 Finally, the piece ends in a highly original way: a short arpeggiated run to a high G, marked ''pianissimo''. 250px Measure 84 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Prelude in G minor (Rachmaninoff)」の詳細全文を読む スポンサード リンク
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