Ignace Pleyel (June 18, 1757–November 14, 1831) was an Austrian-born composer of the Classical period.

He was born in Ruppersthal in Lower Austria, the son of a schoolmaster named Martin Pleyl. While still young he probably studied with Johann Baptist Vanhal, and from 1772 he became the pupil of Joseph Haydn in Eisenstadt. As with Beethoven, born 13 years later, Pleyel benefited in his study from the sponsorship of aristocracy, in this case Count Ladislaus Erdődy (1746-1786). Pleyel evidently had a close relationship with Haydn, who considered him to be a superb student.

Among Pleyel's apprentice work from this time was a puppet opera Die Fee Urgele, (1776) performed in the marionette theater at the palace of Eszterháza and in Vienna. Pleyel apparently also wrote at least part of the overture of Haydn's opera Das abgebrannte Haus, from about the same time.

Pleyel's first professional position may have been as Kapellmeister for Count Erdődy, although this is not known for certain. Among his early publications was a set of six string quartets, his Opus 1.

Pleyel Museum and his birthplace, Ruppersthal, Lower AustriaIn the early 1780's, Pleyel visited Italy, where composed an opera (Ifigenia in Aulide) and works commissioned by the King of Naples.

Pleyel moved to Strasbourg in France in 1783, where he henceforth went by the French version of his name, "Ignace". He was first the assistant Kapellmeister at Strasbourg Cathedral under Franz Xaver Richter, then became full Kapellmeister in 1789 on Richter's death. In 1788 Pleyel married Francoise-Gabrielle Lefebvre, the daughter of a Strasbourg carpet weaver. The couple had four children, the oldest being their son Camille, discussed below.

In 1791, the French Revolution abolished musical performances in church as well as public concerts. Seeking alternative employment, Pleyel traveled to London, where he led the "Professional Concerts" organized by Wilhelm Cramer. In this capacity Pleyel inadvertently played the role of his teacher's rival, as Haydn was at the same time leading the concert series organized by Johann Peter Salomon. Although the two composers were rivals professionally, they remained on good terms personally.

Just like Haydn, Pleyel made a fortune from his London visit. On his return to Strasbourg, he bought a large house, the Château d’Itenwiller in nearby St. Pierre.

With the onset of the Reign of Terror in 1793, life in France became dangerous for many. According to some sources, [attribution needed] Pleyel's loyalty to his adopted country was brought into question, and he is said to have avoided what could easily have been a fatal outcome by composing works of patriotic music.

Pleyel moved to Paris in 1795. In 1797 he set up a business as a music publisher ("Maison Pleyel"), which among other works produced a complete edition of Haydn's string quartets (1801), as well as the first miniature scores for study (the Bibliothèque Musicale, "musical library"). The publishing business lasted for 39 years and published about 4000 works during this time, including compositions by Boccherini, Beethoven, Clementi, and Dussek.

Pleyel visited Vienna on business in 1805, meeting his now elderly mentor Haydn for a final time and hearing Beethoven play.

In 1807, Pleyel became a manufacturer of pianos; for more on the Pleyel piano firm, see below.

Pleyel retired in 1824 and moved to the countryside about 50 km outside Paris. He died in 1831, apparently quite aware that his own musical style had been fully displaced by the new Romanticism in music. He was buried in the Père Lachaise cemetery in Paris.

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