Louis Adam - Piano Sonata, Op. 9: III. Rondo Scherzevole - Allegro

The Rondo Scherzevole opens in B major with a short pickup, staccato repeated notes and alternating bass figures in mm. 1–19. Descending lines and changing registers lead through mm. 20–47 to a written return of the opening material in mm. 52–67. Measures 68–147 develop scalar exchanges, octave melodies and a moving inner part that passes between the two staves. The opening gestures return with altered inner details in mm. 149–216. A mezza voce passage in mm. 217–224 leads to the marked triplet and sextuplet figures in mm. 225–232, followed by cascading lines and shorter exchanges. Upper melodic phrases in mm. 246–276 continue above an active inner accompaniment, before sustained chords and flowing lines in mm. 277–329. The two-flat section beginning at m. 330 reshapes these phrases in B-flat major, with octave gestures, changing registers and a renewed version of the refrain through m. 374. A key-reset pickup at m. 375 brings back B major. Measures 377–426 alternate the refrain with scalar exchanges, held melodic notes and upper-register figures. The closing section in mm. 427–448 introduces a recurring lower dyad-and-single-note pattern beneath separately voiced upper parts. The texture then thins through interrupted gestures and rests in mm. 449–458 to the quiet final cadence. These references follow the visible compartments of the facsimile, including its short closure and pickup cells.