Ludwig van Beethoven was a German composer. A crucial figure in the transition between the Classical and Romantic eras in Western art music, he remains one of the most famous and influential of all composers. His best-known compositions include 9 symphonies, 5 piano concertos, 1 violin concerto, 32 piano sonatas, 16 string quartets, his great Mass the Missa solemnis and an opera, Fidelio. Beethoven composed in several musical genres and for a variety of instrument combinations.
His large body of compositions for piano includes 32 piano sonatas and numerous shorter pieces, including arrangements of some of his other works. Works with piano accompaniment include 10 violin sonatas, 5 cello sonatas, and a sonata for French horn, as well as numerous lieder.
Beethoven also wrote a significant quantity of chamber music. In addition to 16 string quartets, he wrote five works for string quintet, seven for piano trio, five for string trio, and more than a dozen works for various combinations of wind instruments.