The list below is an attempt to complete the list of Chopin's compositions, genre by genre (from www.pianosociety.com).
 
For each genre, the opus number, key of the work and composition year together with possible necessary additional information are included.
 
The opus number 1 to 65 was published during the lifetime of Chopin. On his deathbed, he asked that all his unpublished manuscripts to be destroyed, but that wish was not honored, and in 1853 his mother and sisters asked Julian Fontana, Chopin's friend and amanuensis, to select from among them works that he considered worthy and edit them for publication. He selected twenty-three piano pieces, which he grouped into eight opus numbers (Op. 66 - Op. 73). These works were published in 1855.
 
The unnumbered posthumous works were discovered and published by different organisations and persons after the date of 1855.
 
My list gives a total number of 244 which is more than offical lists. The reason is that I include works produces from weak sketches that have been published in very recent time. As for example the Prelude Devils Trill in Eb-minor, the F-sharp minor Waltz no.20 and the Dabrowski Mazurka in Bb-major. Works that are unknown to the majority of people.
 
 
Ballades (4)
 
Chopin's Ballades represents the highest art of music and are undoubtedly among his most important works. I remember an old book I read where the writers friend during a meeting with fellow lovers of Chopin's music spontaneously called out "All Beethoven's Sonatas for another Chopin Ballade". That should say it all. Chopin's first Ballade took him a great effort to produce and occupied him, on and off, for two years. In Chopin's Ballades, control and deployment of passion in their combination of immediacy and inner logic show us not once but repeatedly how art derives order from chaos.
 
Ballade no.1 - Op.23: G-minor (1835)
Ballade no.2 - Op.38: F-major (1839)
Ballade no.3 - Op.47: Ab-major (1841)
Ballade no.4 - Op.52: F-minor (1842 - 1843)