Hungarian Romantic composer Franz Liszt (1811–1886) was especially prolific, composing more than 700 works. A virtuoso pianist himself, much of his output is dedicated to solo works for the instrument and is particularly technically demanding. The primary cataloguing system for his compositions was developed by Humphrey Searle; it has been thoroughly revamped by Michael Short and Leslie Howard.

Many classical and later composers have written compositions in the form of variations on a theme by another composer. This is an incomplete list of such works, sorted by the name of the original composer. The list does not include variations written on composers' own or original themes, or on folk, traditional or anonymous melodies. Many of these works are called simply "Variations on a Theme of/by ...". Other works, which often involve substantial development or transformation of the base material, may have more fanciful titles such as Caprice, Fantasy, Paraphrase, Reminiscences, Rhapsody, etc. These other types of treatments are not listed here unless there is evidence that they include variations on a theme.

Many classical and later composers have written compositions in the form of variations on a theme by another composer. This is an incomplete list of such works, sorted by the name of the original composer. The list does not include variations written on composers' own or original themes, or on folk, traditional or anonymous melodies. Many of these works are called simply "Variations on a Theme of/by ...". Other works, which often involve substantial development or transformation of the base material, may have more fanciful titles such as Caprice, Fantasy, Paraphrase, Reminiscences, Rhapsody, etc. These other types of treatments are not listed here unless there is evidence that they include variations on a theme.

Below is a list of compositions by Fritz Kreisler sorted by genre.

Many classical and later composers have written compositions in the form of variations on a theme by another composer. This is an incomplete list of such works, sorted by the name of the original composer. The list does not include variations written on composers' own or original themes, or on folk, traditional or anonymous melodies. Many of these works are called simply "Variations on a Theme of/by ...". Other works, which often involve substantial development or transformation of the base material, may have more fanciful titles such as Caprice, Fantasy, Paraphrase, Reminiscences, Rhapsody, etc. These other types of treatments are not listed here unless there is evidence that they include variations on a theme.

Many classical and later composers have written compositions in the form of variations on a theme by another composer. This is an incomplete list of such works, sorted by the name of the original composer. The list does not include variations written on composers' own or original themes, or on folk, traditional or anonymous melodies. Many of these works are called simply "Variations on a Theme of/by ...". Other works, which often involve substantial development or transformation of the base material, may have more fanciful titles such as Caprice, Fantasy, Paraphrase, Reminiscences, Rhapsody, etc. These other types of treatments are not listed here unless there is evidence that they include variations on a theme.

The following is a complete list of compositions by Carl Maria von Weber in order of both opus number and catalogue number. A complete chronological catalogue of Weber's works was compiled by Friedrich Wilhelm Jähns and published in 1871. Catalogue numbers are indicated by a preceding "J."

Many classical and later composers have written compositions in the form of variations on a theme by another composer. This is an incomplete list of such works, sorted by the name of the original composer. The list does not include variations written on composers' own or original themes, or on folk, traditional or anonymous melodies. Many of these works are called simply "Variations on a Theme of/by ...". Other works, which often involve substantial development or transformation of the base material, may have more fanciful titles such as Caprice, Fantasy, Paraphrase, Reminiscences, Rhapsody, etc. These other types of treatments are not listed here unless there is evidence that they include variations on a theme.

Hungarian Romantic composer Franz Liszt (1811–1886) was especially prolific, composing more than 700 works. A virtuoso pianist himself, much of his output is dedicated to solo works for the instrument and is particularly technically demanding. The primary cataloguing system for his compositions was developed by Humphrey Searle; it has been thoroughly revamped by Michael Short and Leslie Howard.

There is a long tradition in classical music of writing music in sets of pieces that cover all the major and minor keys of the chromatic scale. These sets typically consist of 24 pieces, one for each of the major and minor keys (sets that comprise all the enharmonic variants include 30 pieces). Examples include Johann Sebastian Bach's The Well-Tempered Clavier and Frédéric Chopin's 24 Preludes, Op. 28. Such sets are often organized as preludes and fugues or designated as preludes or études. Some composers have restricted their sets to cover only the 12 major keys or the 12 minor keys; or only the flat keys (Franz Liszt's Transcendental Études) or the sharp keys (Sergei Lyapunov's Op. 11 set). In yet another type, a single piece may progressively modulate through a set of tonalities, as occurs in Ludwig van Beethoven's 2 Preludes through all the Major Keys, Op. 39. The bulk of works of this type have been written for piano solo, but there also exist sets for piano 4-hands; two pianos; organ; guitar; two guitars; flute; recorder; oboe; violin solo; violin and piano; cello solo; cello and piano; voice and piano; and string quartet. There are examples of attempts to write full sets that, for one reason or another, were never completed (Josef Rheinberger's organ sonatas, Dmitri Shostakovich's string quartets, César Franck's L'Organiste).

Invitation to the Dance (Aufforderung zum Tanz), Op. 65, J. 260, is a piano piece in rondo form written by Carl Maria von Weber in 1819. It is also well known in the 1841 orchestration by Hector Berlioz. It is sometimes called Invitation to the Waltz, but this is a mistranslation of the original. The autograph manuscript of the work is preserved in the Morgan Library & Museum.

The following is a complete list of compositions by Carl Maria von Weber in order of both opus number and catalogue number. A complete chronological catalogue of Weber's works was compiled by Friedrich Wilhelm Jähns and published in 1871. Catalogue numbers are indicated by a preceding "J."

The Piano Sonata No. 2 in B♭ minor, Op. 35, is a piano sonata in four movements by Polish composer Frédéric Chopin. Chopin completed the work while living in George Sand's manor in Nohant, some 250 km (160 mi) south of Paris, a year before it was published in 1840. The first of the composer's three mature sonatas (the others being the Piano Sonata No. 3 in B minor, Op. 58 and the Sonata for Piano and Cello in G minor, Op. 65), the work is considered to be one of the greatest piano sonatas of the literature. The third movement of the Piano Sonata No. 2 is Chopin's famous funeral march (French: Marche funèbre; Polish: Marsz żałobny) which was composed at least two years before the remainder of the work and has remained, by itself, one of Chopin's most popular compositions. The Piano Sonata No. 2 carries allusions and reminiscences of music by J. S. Bach and by Ludwig van Beethoven; Beethoven's Piano Sonata No. 12 also has a funeral march as its third movement. A typical performance of Chopin's second sonata lasts between 21 and 25 minutes, depending on whether the repetition of the first movement's exposition is observed. While the Piano Sonata No. 2 gained instant popularity with the public, critical reception was initially more doubtful. Robert Schumann, among other critics, argued that the work was structurally inferior and that Chopin "could not quite handle sonata form", a criticism that did not withstand time. The work has been recorded by numerous pianists and is regularly programmed in concerts and piano competitions. The Marche funèbre exists in countless arrangements and has been performed at funerals all over the world (including Chopin's own), having become an archetypal evocation of death.

Johannes Brahms (; German: [joˈhanəs ˈbʁaːms] ; 7 May 1833 – 3 April 1897) was a German composer, virtuoso pianist, and conductor of the mid-Romantic period. His music is noted for its rhythmic vitality and freer treatment of dissonance, often set within studied yet expressive contrapuntal textures. He adapted the traditional structures and techniques of a wide historical range of earlier composers. His œuvre includes four symphonies, four concertos, a Requiem, much chamber music, and hundreds of folk-song arrangements and Lieder, among other works for symphony orchestra, piano, organ, and choir. Born to a musical family in Hamburg, Brahms began composing and concertizing locally in his youth. He toured Central Europe as a pianist in his adulthood, premiering many of his own works and meeting Franz Liszt in Weimar. Brahms worked with Ede Reményi and Joseph Joachim, seeking Robert Schumann's approval through Joachim. He gained both Robert and Clara Schumann's support and guidance. Brahms stayed with Clara in Düsseldorf, becoming devoted to her amid Robert's insanity and institutionalization. The two remained close, lifelong friends after Robert's death. Brahms never married, perhaps in an effort to focus on his work as a musician and scholar. He was a self-conscious, sometimes severely self-critical composer. Though innovative, his music was considered relatively conservative within the polarized context of the War of the Romantics, an affair in which Brahms regretted his public involvement. His compositions were largely successful, attracting a growing circle of supporters, friends, and musicians. Eduard Hanslick celebrated them polemically as absolute music, and Hans von Bülow even cast Brahms as the successor of Johann Sebastian Bach and Ludwig van Beethoven, an idea Richard Wagner mocked. Settling in Vienna, Brahms conducted the Singakademie and Gesellschaft der Musikfreunde, programming the early and often "serious" music of his personal studies. He considered retiring from composition late in life but continued to write chamber music, especially for Richard Mühlfeld. Brahms's contributions and craftsmanship were admired by his contemporaries like Antonín Dvořák, whose music he enthusiastically supported, and a variety of later composers. Max Reger and Alexander Zemlinsky reconciled Brahms's and Wagner's often contrasted styles. So did Arnold Schoenberg, who emphasized Brahms's "progressive" side. He and Anton Webern were inspired by the intricate structural coherence of Brahms's music, including what Schoenberg termed its developing variation. It remains a staple of the concert repertoire, continuing to influence composers into the 21st century.

A piano sonata is a sonata written for a solo piano. Piano sonatas are usually written in three or four movements, although some piano sonatas have been written with a single movement (Liszt, Scriabin, Prokofiev, Berg), others with two movements (Haydn, Beethoven), some contain five (Brahms' Third Piano Sonata, Czerny's Piano Sonata No. 1, Godowsky's Piano Sonata) or even more movements. The first movement is generally composed in sonata form.

A piano sonata is a sonata written for a solo piano. Piano sonatas are usually written in three or four movements, although some piano sonatas have been written with a single movement (Liszt, Scriabin, Prokofiev, Berg), others with two movements (Haydn, Beethoven), some contain five (Brahms' Third Piano Sonata, Czerny's Piano Sonata No. 1, Godowsky's Piano Sonata) or even more movements. The first movement is generally composed in sonata form.

The following is a complete list of compositions by Carl Maria von Weber in order of both opus number and catalogue number. A complete chronological catalogue of Weber's works was compiled by Friedrich Wilhelm Jähns and published in 1871. Catalogue numbers are indicated by a preceding "J."

This is a list of compositions by Felix Mendelssohn.

This is a list of compositions by Carl Czerny. Czerny composed a large number of pieces (up to Op. 861), including piano music (études, nocturnes, 11 sonatas, opera theme arrangements and variations) and also masses and choral music, 6 symphonies, concertos, songs, string quartets and other chamber music. Czerny himself divided his music into four categories: studies and exercises easy pieces for students brilliant pieces for concerts serious music.

Below is a list of compositions by Fritz Kreisler sorted by genre.