B-flat minor in the context of "Piano Concerto No. 1 (Tchaikovsky)"

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.

The Symphony No. 1 in B♭ minor is one of two symphonies by the English composer William Walton. The composer had difficulty in completing the work, and its first public performance was given without the finale, in 1934. The complete four-movement work was premiered the following year.

The work shows the influence of Sibelius, particularly in its musical structure. It is among the best-known symphonies by British composers, and has received numerous recordings from within a month of the 1935 premiere to the 21st century.