Schubert's Impromptu Op. 90 No. 2 in E-flat Major (D. 899) is a masterclass in tonal shifting and structural drama. Most notably, it is famous for starting in a bright E-flat Major
This Impromptu is a textbook example of how Schubert used harmony to create a "psychological" narrative—wandering through keys not just to fit a form, but to evoke a sense of longing and searching.
The A section itself is ternary (a–b–a). The middle "b" sub-section shifts to the parallel minor (E-flat minor) , creating a "poignant beauty" through its sudden shift to pianissimo Secondary Dominants:
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 schubert impromptu op 90 no 2 harmonic analysis
[E-flat Major] ---> (Enharmonic Shift: E-flat / D-sharp) ---> [B Minor] The Harmonic Magic Trick
In standard Classical structures, a work that begins in a major key ends in a major key. Schubert completely upends this convention. The Coda (m. 251) brings back the aggressive, syncopated theme from Section B, but transplants it into the home key of . Ultimate Tonal Collapse mm. 251–260: The Section B theme is stated firmly in minor. The harmony oscillates fiercely between V7cap V to the seventh power
The piece concludes with aggressive, fortissimo cadential chords firmly rooted in E-flat minor (i – V7 – i) . Key Takeaways for Analysis Technique Used Musical Effect A to B Transition Enharmonic pivot (E-flat →right arrow Sudden, shocking shift from light to dark Internal B Section Chromatic third modulations Creates a restless, wandering emotional state The Coda Transposition to parallel minor Subverts the happy ending, closing in tragedy Schubert's Impromptu Op
How does Schubert connect two keys that share almost no common scales? He uses and chromatic third relations . The A section ends on an unharmonized E-flat octave. Schubert mentally reinterprets this E-flat as a D-sharp . D-sharp serves as the
Instead of closing with a standard E-flat major affirmation, Schubert ends the piece with a shocking structural twist.
The B section’s shift to E major is radical—not a traditional relative or parallel key, but a of the tonic, prefiguring late Romantic and Impressionist harmonic practices. 899) is a masterclass in tonal shifting and structural drama
Below is a structured, paper-ready analysis focusing on harmony, form, and function.
This harmonic excursion adds variety and interest to the recapitulation, while also reinforcing the piece's overall tonal structure.
The transition into Section B (m. 83) represents one of the most radical harmonic shifts in the nineteenth-century piano literature. Schubert moves from . The Chromatic Third Relationship (Mediant Modulation) Enharmonically, B minor can be understood as C-flat minor ( ) .