Ludwig van Beethoven (1770 – 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank among the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era in classical music. His career has conventionally been divided into early, middle, and late periods. His early period, during which he forged his craft, is typically considered to have lasted until 1802. From 1802 to around 1812, his middle period showed an individual development from the styles of Joseph Haydn and Wolfgang Amadeus Mozart, and is sometimes characterized as heroic. During this time, he began to grow increasingly deaf. In his late period, from 1812 to 1827, he extended his innovations in musical form and expression.

Beethoven was born in Bonn. His musical talent was obvious at an early age. He was initially harshly and intensively taught by his father, Johann van Beethoven. Beethoven was later taught by the composer and conductor Christian Gottlob Neefe, under whose tutelage he published his first work, a set of keyboard variations, in 1783. He found relief from a dysfunctional home life with the family of Helene von Breuning, whose children he loved, befriended, and taught piano. At age 21, he moved to Vienna, which subsequently became his base, and studied composition with Haydn. Beethoven then gained a reputation as a virtuoso pianist, and was soon patronised by Karl Alois, Prince Lichnowsky for compositions, which resulted in his three Opus 1 piano trios (the earliest works to which he accorded an opus number) in 1795.

He composed his Natural Horn Sonata in F Major, Op. 17 in 1800 for the virtuoso horn player Giovanni Punto. It was premiered with Punto as the soloist, accompanied on the piano by Beethoven himself in Vienna on April 18, 1800. Beethoven was not well known outside of Vienna at the time of this composition, and after a performance of the piece in Pest, played by Punto and Beethoven, a Hungarian critic wrote, "Who is this Beethover (sic)? His name is not known to us. Of course, Punto is very well known."

This work was written for the natural horn and in the cor basse idiom, i.e. Beethoven incorporates rapid arpeggios in the first and third movement as well as use of the factitious low G below the second harmonic. These were all traits of cor basse playing, the genre in which Punto specialised. However, like many works of this period, to broaden the potential market for the work, an arrangement of the sonata for cello was made, probably by Beethoven, for publication. It was then published as "Sonate pour le Forte-Piano avec un Cor ou Violoncelle." Versions for violin, flute were also made.

Source: Wikipedia (https://en.wikipedia.org/wiki/Horn_Sonata_(Beethoven)) .

Although originally written for Horn & Piano, I created this Arrangement of the Sonata in F Major (Opus 17) for Flute & Piano.