This is a list of compositions by Johann Nepomuk Hummel. By opus numbers This list is sorted by opus number. Op. 1, 3 sets of Variations for piano (London, 1791) 1. The Plough Boy in C major 2. Bluhe Liebes Veilhen in G major 3. La Belle Catherine in C major Op. 2, 2 sets of Variations for piano (London, 1791) 1. The Lass of Richmond Hill in G major 2. Jem of Aberdeen in G major Op. 2a, 3 Sonatas (London, 1792) 1. For Violin (or Flute), Violoncello, and Piano in B♭ major 2. For Violin (or Flute) and Piano in G major 3. For Piano, No. 1, in C major Op. 3, 3 sets of Variations for piano (London, 1794) 1. A Rondo of Pleyel in C major 2. The Lass of Richmond Hill in G major (Opus 2–1) 3. Wenn's Immer So War in G major Op. 3a, Trio for Violin, Violoncello, and Piano, No. 1, in B♭ major (1792). Not described as a trio by the composer, and not included in otherwise complete sets. Op. 4, 3 Cadenzas for Piano Concertos by Mozart (1790s) 1. for K 413 2. K 414 3. K 415 Op. 5, 3 Sonatas (Vienna, circa 1798) 1. For Violin in B major 2. For Violin in F major 3. For Viola in E major Op. 6, Variations for Piano and Orchestra (Vienna, circa 1798). Theme by Foglar (F major) Op. 7, 3 Fugues on the Style of Handel (Vienna, circa 1799) 1. Fugue in D minor 2. Fugue in E major 3. Fugue in F minor Op. 8, Variations for Piano on a Traditional Austrian Song in F major (Vienna, circa 1801) Op. 9, Variations for Piano on a March by Cherubini in E major (Vienna, circa 1802) Op. 10, Variations for Piano on "God Save The King" in D major (Vienna, circa 1804) Op. 11, Rondo Favori for Piano in E major (Vienna, circa 1804) Op. 12, Trio for Violin, Violoncello, and Piano, No. 2, in E♭ major (Vienna, circa 1803) Op. 13, Sonata for Piano, No. 2 in E major (Vienna, circa 1803–1805) Op. 14, Variations for Flute and Piano in G major (Vienna, circa 1803). Theme by Meyule Op. 15, Variations for Piano on an Aria from Dalayrac's "Les Deux Petits Savoyards" in A minor (Vienna, circa 1804) Op. 16, 6 German Dances (1804). For orchestra. Also for