1805 in music

Events

• Beethoven's Symphony No. 3, Eroica is premiered in Vienna on 1805-04-07.
• Beethoven's opera Leonore (the first version of Fidelio) is premiered in Vienna.
• Louis Spohr is appointed musical director to the court of Gotha.
• Niccolò Paganini begins touring Europe.

Classical music

• Franz Krommer – Concerto for Oboe in F Major (op 52)

Opera

• Michele Carafa – Il Fantasma
• Luigi Cherubini – Faniska
• James Hook – The Soldier's Return

Births

• January 7 – Philip Klitz, composer (d. 1854)
• March 5 – Théodore Labarre, harpist and composer (d. 1870)
• March 17 – Manuel Patricio Rodríguez García, singer and music teacher (d. 1906)
• May 14 - Johan Peter Emilius Hartmann, composer (d. 1900)
• July 8 – Luigi Ricci, opera composer (d. 1859)
• July 27 – Luigi Felice Rossi, composer and musicologist (d. 1863)
• October 28 – John Thomson, composer (d. 1841)
• November 1 – Alessandro Nini, composer (d. 1880)
• November 14 – Fanny Hensel, pianist and composer (d. 1847)

Deaths

• January 23 – Wenzel Pichl, composer (b. 1741)
• February 4 – Johann George Tromlitz, flautist (b. 1725)
• April – Emerico Lobo de Mesquita, organist, conductor, composer and music teacher (b. 1746)
• April 28 Peter Pelham, harpsichordist, organist and composer (b. 1721)
• May 10 – Johann Evangelist Haydn, tenor, brother of Joseph Haydn and Michael Haydn (b. 1743)
• May 28 – Luigi Boccherini, composer (b. 1743)
• August – Ann Griffiths, hymn-writer (b. 1776)
• November – Hamoir, dancer and theatre director
• December 18 – Gennaro Astarita, opera composer (b. c.1745)