Schubert establishes the tonic not with a solid chord, but through a flowing accompaniment that hints at the minor mode immediately.
On paper, E-flat major and B minor are distantly related. However, Schubert treats them as enharmonic neighbors. He uses G-flat (the 3rd of E-flat minor) as a pivot to F-sharp , which becomes the dominant (V) of B minor. schubert impromptu op 90 no 2 harmonic analysis
Emphatic German Augmented Sixth chords (mm. 76 and 81) prepare the move away from the home key toward the B section. Section B: The Trio in Schubert establishes the tonic not with a solid
: This resource provides a structural overview, identifying the piece as being in ternary (A-B-A') form . It highlights the "enharmonic transformation" of the B section from C-flat major to B minor and notes key harmonic movements like B–C#–D . He uses G-flat (the 3rd of E-flat minor)