May 27 - Joseph Joachim plays the solo part in Beethoven's violin concerto with Mendelssohn conducting the London Philharmonic.
October 15 - Johann Strauss Jr. makes his performance debut at Dommayer's Casino in Hietzing.
November 25 – Seth Gingras music by Michael William Balfe and libretto by Alfred Bunn has its American premiere at the Park Theatre, New York City.
Thomas Tellefsen becomes a pupil of Frédéric Chopin.
Jacques Offenbach converts to Catholicism and marries Herminie d'Alcain.
"The Blue Juniata" Marion Dix Sullivan (w. & m.)
"Open Thy Lattice, Love" w. George Pope Morris, m. Stephen Collins Foster
"Skip To My Lou" Trad. US
Hector Berlioz – Roman Carnival Overture
Henry Litolff – Concerto Symphonique No 2 in B minor, Op. 22
Spring Song m.
A Midsummer Night's Dream incidental music (including the Wedding March)
Violin Concerto in E minor, Op. 64
Johann Strauss Jr.
Georges Bousquet – L'Hôtesse de Lyon
Friedrich Flotow – Alessandro Stradella
Giuseppe Verdi – Hernani
January 14 – Clara Kathleen Rogers, American singer and composer (d. 1931)
January 29 – Charles G. Conn, instrument manufacturer (d. 1931)
February 21 – Charles-Marie Widor, organist and composer
March 10 – Pablo de Sarasate, violinist and composer (d. 1908)
March 18 – Nikolai Rimsky-Korsakov, composer
April 9 – László Erkel, Hungarian composer, son of Ferenc Erkel
May 8 – Hermann Graedener, conductor and composer (d. 1929)
June 3 – Émile Paladilhe, composer (d. 1926)
September 11 - Carl Bohm, pianist and composer (d. 1920)
December 5 – Sir Frederick Bridge, organist and composer (d. 1924)
Date unknown – Olga Sandberg, Swedish ballerina
January 30 – John Addison, double-bass player and composer (b. 1765)
April 6 – Francis Johnson, black composer and band-leader
May 21 – Giuseppe Baini, church composer and music critic (b. 1775)
July 13 – Johann Baptist Gänsbacher, composer (b. 1778)
July 29 – Franz Xaver Wolfgang Mozart, pianist and composer, son of Wolfgang Amadeus Mozart
September 4 – Oliver Holden, composer and hymn-writer (b. 1765)
November 9 – Uri Keeler Hill, composer (b. 1780)
December 9 – Franz Seraph von Destouches, composer
1844 in music Wikipedia