piano (Vienna, circa 1804) Op. 17, Concerto for Violin and Piano in G major (Vienna, circa 1805) Op. 17a, Cadenza to Mozart's Piano Concerto, K 595 Op. 18, Fantasy for Piano in E major (Vienna, circa 1805) Op. 19, Rondo-Fantasy for Piano in E major (Vienna, circa 1806) Op. 20, Sonata for Piano, No. 3 in F minor (Vienna, circa 1807) Op. 21, Variations for Piano on a Dutch Song in B major (Vienna, circa 1806) Op. 22, Trio for Violin, Violoncello, and Piano, No. 3 in F major (Vienna, circa 1799–1807) Op. 23, 7 Hungarian Dances (1806). For orchestra. Also for piano (Vienna, circa 1806) Op. 24, 12 Minuets (1806). For orchestra. Also for piano (Vienna, circa 1807) Op. 25, 12 German Dances and Coda (1807) For orchestra. Also for piano (Vienna, circa 1807) Op. 26, Ballet, Helene And Paris (1807) Op. 27, Dance for Apollosaal, No. 1 (1808). 12 minuets for orchestra. Also for chamber ensemble (Vienna, circa 1808) Op. 28, Dance for Apollosaal, No. 2 (1808). 12 German dances for orchestra. Also for piano (Vienna, circa 1808) Op. 29, 12 German Dances for Redout-Deutsche (1808). For orchestra. Also for chamber ensemble (Vienna, circa 1808) Op. 30, 3 String Quartets (Vienna, circa 1804–1808) 1. No. 1 in C major 2. No. 2 in G major 3. No. 3 in E major Op. 31, Dance for Apollosaal, No. 3 (1809). 6 waltzes for orchestra. Also for piano (Vienna, circa 1810) Op. 32, Variations for Piano On "La Sentinelle" (1812) Op. 33, Ballet, Das belebte Gemählde (1809). Also for piano (Vienna, circa 1810) Op. 34, 3 Sets of Variations for Piano (Vienna, circa 1810–1812) 1. La Sentinelle in C major 2. Partant Bacchus La Syrie in D major 3. Mozart's Opera in C major Op. 35, Trio for Violin, Violoncello, and Piano, No. 4 in G major (Vienna, circa 1808–1811) Op. 36, Concerto for Piano, No. 1 in C major (Vienna, circa 1811). Also known as Op. 34a Op. 37, 8 Pieces for Piano: "Choix Des Plus Beaux Morceaux De Musique" (Vienna, circa 1811) Op. 37a, Sonata for Mandolin and Piano in C major (Vienna, circa 1810). Also for violin and piano. Op. 38, Sonata for Piano, No. 4 in C major (Vienna, circa 1808) Op. 39, Dance for Apollosaal, No. 4 (1811). 4 German dances and coda for orchestra. Also for piano (Vienna, circa 1811) Op. 40, 12 German