Polka northern Mexico and Texas, and are also called "Norteño". Traditional dances from this region reflect the influence of polka-dancing European immigrants. In the 1980s and 1990s, several American bands began to combine polka with various rock styles (sometimes referred to as "punk polka"), "alternative polka", or "San Francisco-style". There also exist Curaçaoan polkas, Peruvian polkas (becoming very popular in Lima). In the pampas of Argentina, the "polca" has a very fast beat with a time signature. Instruments used are: acoustic guitar (usually six strings, but sometimes seven strings), electric or acoustic bass (sometimes fretless), accordion (sometimes piano accordion, sometimes button
Polonaise in A-flat major, Op. 53 main theme on the harpsichord. Polonaise in A-flat major, Op. 53 ] The Polonaise in A major, Op. 53 (, "Heroic Polonaise"; ) for solo piano, was written by Frédéric Chopin in 1842. This composition is one of Chopin's most admired compositions and has long been a favorite of the classical piano repertoire. The piece requires exceptional piano skills and great virtuosity to be interpreted at a high degree of proficiency. It is also very physically demanding, and according to his student Adolphe Gutmann, Chopin played it more gently than most performers. The polonaise was dedicated to Auguste Léo, a