Schubert’s harmonic language is saturated with —the borrowing of chords from the parallel minor while remaining in a major mode. The A section already contains a long passage in E‑flat minor (mm. 25–51), where the triplets continue but the harmony becomes darkly coloured. This episode goes through a complete circle of fifths, touching D♭, G♭, and C♭ in addition to the signature flats.
Schubert, F. Impromptu in E‑flat major, Op. 90 No. 2 (D. 899) . In Harmonic Analysis , ed. [Author]. [Publisher], 2026.
The most radical harmonic choice occurs in the final bars (Bar 251 to the end). Instead of concluding the piece in the bright home key of E-flat major, Schubert forces the composition into . Deconstruction of the Theme
Built in a nested ternary form (a–b–a). schubert impromptu op 90 no 2 harmonic analysis
Rapid, flowing triplets, characterized by light, agile melodic lines.
: The final cadence is a violent descent in minor, a rarity for a piece that starts in a major key. Traversing Schubert's Opus 90 Impromptus
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 This episode goes through a complete circle of
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The development section marks a significant shift in the harmonic landscape. Schubert modulates to F minor, introducing a darker, more contemplative mood. The chord progression becomes more complex, featuring a series of suspensions, appoggiaturas, and Neapolitan chords. A particularly striking moment occurs in measure 33, where a German sixth chord (D-flat, F, A-flat, B) leads to a V chord in E-flat major. This progression creates a thrilling sense of harmonic uncertainty.
The original A section returns with its characteristic swirling triplets. Conclusion: The piece ends with a The Initial Period (Bars 1–14)
This harmonic rhythm—changing chords every bar, but keeping the pulsing eighth notes—creates a stunning kaleidoscope. The listener feels like they are spinning through different colored rooms.
: The music sequences upward, passing through G-flat major ( III) and C-flat major (
The A section relies on a rapidly ascending and descending E-flat major scale in the right hand, grounded by simple harmonic block chords in the left hand. However, Schubert immediately introduces chromatic instability. The Initial Period (Bars 1–14)