The harmonic analysis of Impromptu Op. 90, No. 2 not only deepens our understanding of Schubert's compositional techniques but also informs performance practice. Pianists must navigate the piece's complex harmonic landscape with sensitivity and insight, bringing out the contrasts and connections between different themes and sections.
Opens with a clear I (Eb major) arpeggiated in the right hand over a dominant pedal (Bb in left hand – V chord root).
B-minor (written enharmonically or shifting rapidly via chromatic mediants). Driven by a syncopated, rustic dance rhythm.
: instead of resolving to C♭ major, the chord resolves to C♭ minor , which is then enharmonically respelled as B minor (since C♭ minor would require seven flats, an impractical notation). The result is the thunderous B‑minor middle section. schubert impromptu op 90 no 2 harmonic analysis
), introducing early melancholy into an otherwise joyful theme. Modulation and the Secondary Theme (mm. 26–51)
A notable harmonic motif in the B section involves a rising third move ( B→C#→Dcap B right arrow cap C # right arrow cap D ), which drives the tension in the melodic theme. 3. Detailed Harmonic Breakdown by Section Section Key Features A Section E-flat Major Rapid scale-based triplets; - - foundational harmony with chromatic passing tones. A Transition Modulatory
E-flat major. Driven by scalar triplets in the right hand. The harmonic analysis of Impromptu Op
The melody often uses secondary dominants for climactic sequences and "German sixth" chords (at bars 76 and 81) before closing the section. Section B / Trio (B Minor): The piece modulates abruptly to
Schubert's Impromptu Op. 90, No. 2, is a masterpiece of harmonic ingenuity, showcasing the composer's exceptional skill in crafting innovative chord progressions and modulations. Through our harmonic analysis, we've uncovered a rich web of relationships between chords, keys, and themes, which underpin the piece's beauty and emotional impact.
Schubert repeats the primary theme, but expands it via chromatic voice-leading. He utilizes a secondary dominant loop ( to IV ) to transition into a secondary thematic area that flirts with B-flat major (the dominant). However, instead of a traditional classical modulation, the section continuously slips back into E-flat minor before abruptly halting on an open B-flat octave, setting up the dramatic contrast of Section B. Section B: Fierce Syncopation and Distant Tonalities Driven by a syncopated, rustic dance rhythm
Schubert extends the phrase by dipping into the parallel minor. In measure 11, we encounter a Neapolitan sixth chord (
The triplets now have a strong accent on the second beat, creating a "waltz" or "minuet" feel that is more angular and intense than the flowing A section.
The piece begins with an implied tonic chord (E-flat – G – B-flat) arpeggiated in triplets. However, Schubert immediately tonicizes (the dominant’s parallel minor).
This article provides a deep dive into the harmonic structure, formal design, and tonal adventures of this remarkable piano work. 1. Overview and Structure E Tempo: Allegro Form: Ternary (A–B–A′) with a Coda