1798 in music

	… 1788; 1789; 1790; 1791; 1792; 1793; 1794; ; 1795; 1796; 1797; 1798; 1799; 1800; 1801; ; 1802; 1803; 1804; 1805; 1806; 1807; 1808 …;
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Events

July 11 – United States Marine Band established by Act of Congress.
September 2 – Opening of the Teatro Comunale (Ferrara) in Italy with a performance of Portogallo's Gli Orazi e i Curiazi.
Opening of the Teatro della Concordia in Iesi, Ancona, "one of the few opera houses in Italy from the late 1700s that has never been destroyed by fire or bombs".^[1]
Completion of the first São João National Theatre in Porto, Portugal as an opera house.
Michael Haydn takes on Carl Maria von Weber as a pupil without charge.
First edition of Niemetschek's biography of Mozart published.

Ludwig van Beethoven – Piano Sonata No. 8 in C minor, Op. 13 (Sonata Pathétique)
Joseph Eybler – Clarinet Concerto in B-flat major
Joseph Haydn
- The Creation
- Missa in Angustiis
Leopold Kozeluch – Sinfonia Concertante in E-flat major
Paul Wranitzky – Grande Sinfonie caracteristique in C minor, Op. 31

January 31 – Carl Gottlieb Reissiger, kapellmeister and composer (d. 1859)
March 9 – Mathilda Berwald, Hovsångare (d. 1877)
October 28 – Henri Bertini, pianist and composer (d. 1876)
date unknown
- Andrea Maffei, librettist (d. 1885)
- Louis-Désiré Véron, opera manager (d. 1867)
- Lovisa Charlotta Borgman, violinist (d. 1884)