Classical music

• Ludwig van Beethoven – String Quintet (Opus 104)
• Frederic Chopin – Two Polonaises
• Muzio Clementi – Gradus ad Parnassum Volume I is published simultaneously in London, Paris and Leipzig on March 1.
• Georg Gerson – Symphony in E-flat major
• Anton Reicha – Andante for Wind Quintet no. 1 in E-flat major
• Franz Schubert – String Trio in B-flat major, D. 581

Opera

• Franz Danzi – Die Probe
• Gioacchino Rossini – La Cenerentola, La Gazza Ladra, Armida, Adelaide di Borgogna

Published Popular Music

• "Oft, in the Stilly Night" – w.m. (arr.) Thomas Moore

Births

• February 22 – Niels Gade, composer (d. 1890)
• March 2 – Hans Hansen, composer (d. 1878)
• March 24 – Aimé Maillart, composer (d. 1871)
• June 13 – Antonio Torres Jurado, Spanish guitar maker (d. 1892)
• August 13 – Károly Thern, pianist, conductor and composer (d. 1886)
• November 12 – Gustav Nottebohm, musicologist (d. 1882)
• November 13
  • Louis James Alfred Lefébure-Wély, organist (d. 1869)
  • Henry Brinley Richards, composer (d. 1885)

Deaths

• January 14 – Pierre-Alexandre Monsigny, composer (b. 1729)
• January 28 – F.L.Æ. Kunzen, conductor and composer (b. 1761)
• March 1 – Luigi Gatti, composer (b. 1740)
• August 24 – Nancy Storace, operatic soprano (b. 1766)
• October 11 – Franz Xaver Hammer, gambist, cellist and composer (b. 1741)
• October 18 – Etienne Méhul, composer (b. 1763)
• November 7 – Francesco Pasquale Ricci, composer (b. 1732)
• December 1 – Justin Heinrich Knecht, organist and composer (b. 1752)
• date unknown – John Peacock, Northumbrian piper (b. c. 1756)

https://en.wikipedia.org/wiki/1817_in_music