1845 in music
Events
- March 13 – Felix Mendelssohn's Violin Concerto is premièred in Leipzig with Ferdinand David as soloist.
- April 21 – Albert Lortzing's opera Undine debuts in Magdeburg.
- June 4 – William Fry's opera Leonora debuts in Philadelphia.
- July – Pas de Quatre is premièred in London, bringing together four of the greatest ballerinas of the time: Lucile Grahn, Carlotta Grisi, Fanny Cerrito, and Marie Taglioni.
- July 19 – The National Anthem of Uruguay is first performed with music composed by Francisco José Debali with the collaboration of Fernando Quijano.
- October 19 – Richard Wagner's opera Tannhäuser debuts at the Dresden Hoftheater.
- Composer Henry Hugo Pierson goes to live in Germany.
- The Hutchinson Family Singers tour England with Frederick Douglass.
- Theodore Thomas arrives in the United States. The conductor would eventually become the Father of American Symphonic culture.
- Austrian pianist Leopold von Meyer begins a tour of the United States.
- The saxhorn family of valved brass instruments is patented by Adolphe Sax in France.
Classical music
- Frédéric Chopin - Mazurkas, Op. 59
- Francesco Florimo – La Tarantella
- Hans Christian Lumbye – Champagne Galop, Op. 14
- Robert Schumann – Piano Concerto in A minor
- Pedro Soler – Premier Air varié sur un thème original
- Václav Veit – Les adieux, Op. 26
- Giuseppe Verdi – Seste Romanze II
- Samuel Sebastian Wesley – Morning and Evening Service in E major
Opera
- W. H. Fry – Leonora
- Albert Lortzing – Undine
- Giovanni Pacini – Stella di Napoli, premiered December 11 in Naples
- Temistocle Solera – La Hermana de Palayo
- Giuseppe Verdi
- *Alzira
- *Giovanna d'Arco
- Richard Wagner – ''Tannhäuser''
Births
- January 17 – Erika Nissen, pianist
- February 25 – Eugène Goossens, père, conductor
- March 5 – Alphonse Hasselmans, harpist and composer
- March 7 – Edward Lloyd, concert tenor
- March 13 – Joséphine Daram, opera singer
- March 14 – August Bungert, opera composer
- May 12 – Gabriel Fauré, composer
- May 22 – Francis Hueffer, music writer
- June 13 – Effie Germon, actress and singer
- July 1 – Ika Peyron, composer
- July 6 – Ángela Peralta, operatic soprano
- August 10 – Abay Qunanbayuli, poet, composer and philosopher
- August 25 – King Ludwig II of Bavaria, the great patron of Richard Wagner
- November 6 – Beniamino Cesi, pianist
- November 8 – Madeline Schiller, pianist
- date unknown
- *Annie Jessy Curwen, writer of children's music books
- *Antonio Galassi, operatic baritone
Deaths
- January 19 – Carl Borromäus von Miltitz, composer
- March 29 – Victor Lhérie, librettist
- May 11 – Carl Filtsch, pianist and composer
- July 10 – Juan Paris, composer and priest
- July 15 – Joseph Augustine Wade, conductor and composer
- September 23 – Matija Ahacel, collector of folk songs
- October 7 – Isabella Colbran, soprano and first wife of Gioacchino Rossini
- October 16 – Martha Llwyd, hymn-writer
- October 26 – Carolina Oliphant Nairne, songwriter
- November 2 – Chrétien Urhan, violinist and organist
- December 2 – Simon Mayr, composer
- December 25 – Wilhelm Friedrich Ernst Bach, composer
- date unknown – Alexander Juhan, violinist, conductor and composer