Schubert Impromptu Op 90 No 2 Harmonic Analysis Apr 2026

The B section begins with a new theme in the key of E-flat major (V of Ab major). The harmony becomes more complex, with a series of secondary dominants and borrowed chords:

m. 25: V (Eb major) - root position (Eb - G - Bb) m. 27: vii°7/5 (Db7) - 3rd inversion (Db - F - Ab - Bb) m. 29: vi (Gb major) - root position (Gb - Bb - Db) schubert impromptu op 90 no 2 harmonic analysis

m. 1: I (Ab major) - 3rd inversion (Ab - C - Eb) m. 2: V6/4 (Eb major) - 2nd inversion (Eb - G - Bb) m. 3: I (Ab major) - root position (Ab - C - Eb) m. 4: I (Ab major) - 1st inversion (C - Eb - Ab) The B section begins with a new theme