Chopin Piano Etude in G-flat major Op. 10 No. 5

Étude Op. 10, No. 5, in G-flat major, is a study for solo piano composed by Frédéric Chopin in 1830. It was first published in 1833 in France, Germany, and England as the fifth piece of his Études Op. 10. The so-called "Black Key Etude" is one of the most popular. It presents a cascade of ‘pearly’, perhaps even slightly ‘glassy’, sonorities, executed with charm and amusement. It is famous for its very idea and the related name: the ‘black keys’ Etude. According to Liszt, it expresses mocking humour – something rare in Chopin. Sometimes referred to as "Ladies Salon Etude."