Louis-Joseph Diémer (February 14, 1843 - December 21, 1919) was a French pianist and composer. February 14 is the 45th day of the year in the Gregorian Calendar. ... 1843 was a common year starting on Sunday (see link for calendar). ... December 21 is the 355th day of the year (356th in leap years) in the Gregorian Calendar. ... 1919 was a common year starting on Wednesday (see link for calendar). ...

He studied at the Paris Conservatoire, winning premiers prix in piano, harmony and accompaniment, counterpoint and fugue, and solfège, and a second prix in organ. His teachers were Antoine Marmontel for piano, Ambroise Thomas for composition and François Benoist for organ. He quickly built a reputation as a virtuoso and toured with the violinist Pablo de Sarasate. At the Conservatoire he taught, among others, Robert Casadesus, Alfred Cortot and Edouard Risler. Diémer was also instrumental in promoting the use of historical instruments, giving a series of harpsichord performances as part of the 1889 Universal Exhibition and contributing to the founding of the Société des instruments anciens. His output as a composer is extensive, including a piano concerto and a quantity of salon pieces. Former Conservatoire building (until 1911), still used as Théâtre du Conservatoire Conservatoire de Paris, or Paris Conservatoire, has been central to the evolution of music in France and Western Europe. ... Charles Louis Ambroise Thomas (August 5, 1811 - February 12, 1896) was a French opera composer. ... Pablo Martín Melitón de Sarasate y Navascuéz (March 10, 1844–September 20, 1908) was a Spanish violinist and composer. ... Robert Casadesus (April 7, 1899 – September 19, 1972) was a French pianist and composer. ... Alfred Denis Cortot (September 26, 1877 – June 15, 1962) was a French pianist and conductor. ...