1800 - 1803
During these years Carl Czerny studied piano under Ludwig van Beethoven, having been accepted as a pupil after impressing the composer with performances of the Pathétique Sonata and Adelaide. Beethoven taught him intensively from 1801 to 1803, with occasional instruction continuing until 1804, and later entrusted Czerny with significant performances, including the premiere of his Piano Concerto No. 1 in 1806 and the Vienna premiere of the "Emperor" Concerto in 1812. Beethoven praised Czerny’s extraordinary progress, remarkable memory, and exceptional abilities for his age, recommending him highly in a 1805 letter. Czerny also provided some of the earliest reports of Beethoven’s hearing troubles, recorded numerous observations of his teacher’s improvisational brilliance and pianistic technique, and preserved important recollections of Beethoven in his autobiography and letters.
