Schubert’s Impromptu Op. 90 No. 2 in E-flat Major (D. 899) is structured in a large ternary (A–B–A) form
The development section begins with a dramatic outburst in E-flat minor (mm. 25-28), which serves as a harmonic pivot to the new key area:
Bar 1: Opens with a clear I (Eb major) arpeggiated in the right hand over a dominant pedal (Bb in left hand – V chord root). schubert impromptu op 90 no 2 harmonic analysis
References:
a' (mm. 52–82): Returns to the home key before transitioning to the Trio. Schubert’s Impromptu Op
Includes sequences of secondary dominants that build toward melodic climaxes. Features emphatic German augmented sixth chords
The Parallel Minor Shift: Early in Section A, the music transitions from 899) is structured in a large ternary (A–B–A)
The Tragic Turn: The triplet scales return, but they are now shadowed by the flattened 3rd (G-flat), 6th (C-flat), and 7th (D-flat).