1775 in music
Events
- February 23 – Première of Pierre Beaumarchais's play, The Barber of Seville, which will later provide material for more than one opera.
- Wilhelm Hauser becomes organist at the monastery of Lavaldieu and the teacher of Étienne Méhul.
Classical music
- Carl Friedrich Abel – 6 String Quartets, Op. 12
- John Alcock Jr. – 8 Easy Organ Voluntaries
- Carl Philipp Emanuel Bach
- *Symphony in D major, H.663
- *Symphony in F major, H.665
- Johann Christian Bach – Sinfonia concertante, W.C 34
- Wilhelm Friedemann Bach – Keyboard Sonata in G major, F.7
- Giovanni Battista Cirri – 6 String Quartets, Op. 13
- Carl Ditters von Dittersdorf – Concerto for Oboe in D major
- Tommaso Giordani – 6 Flute Trios, Op. 12
- Joseph Haydn
- *Baryton Trio in D major, Hob.XI:114
- *Il Ritorno di Tobia, Hob.XXI:1
- *Mass in B-flat major, Hob.XXII:7
- Joseph Martin Kraus – Requiem
- Georg Anton Kreusser – 6 Flute Quintets, Op. 10
- Franz Lamotte – Violin Concerto No. 2
- Wolfgang Amadeus Mozart
- *Violin Concertos No. 3, No. 4 & No. 5
- *Symphony No.52 in C major, K.102/213c
- *Serenade in D major, K.204/213a
- *Church Sonata in B-flat major, K.212
- *Misericordias Domini, K.222/205a
- Friedrich Wilhelm Rust – Sonata in A major, CzaR 110
- Friedrich Schwindl – 6 Quartets, Op. 7
- Maddalena Laura Sirmen – 6 Duets, Op. 5
- Johann Matthias Sperger – Quartet in D major, for flute, viola, cello, and contrabass, M.C III:23a
- Carl Stamitz – 3 Quintets, Op. 11
- John Stanley – Six Concertos for the Organ, Harpsichord, or Forte Piano, with Accompanyments for Two Violins and a Bass, Op. 10
Opera
- Johann André – Erwin und Elmire
- André Ernest Modeste Grétry – La fausse Magie
- Joseph Haydn – L'incontro improvviso, Hob.XXVIII:6
- Gaetano Latilla – Antigono
- Wolfgang Amadeus Mozart
- *La finta giardiniera, K. 196
- *Il re pastore, K. 208
- Josef Mysliveček – Il Demofoonte
- Giovanni Paisiello
- *Socrate immaginario, R.1.48
- *Il gran Cid, R.1.49
Methods and theory writings
- Andrea Basili – Musica universale armonico pratica
- Marie-Dominique-Joseph Engramelle – La Tonotechnie
- Fedele Fenaroli – Regole musicali per i principianti di cembalo
- Johann Caspar Heck – Short and Fundamental Instructions for Learning Thorough Bass
- Jacob Schuback – Von der musikalischen Declamation
Births
- January 21 – Manuel del Pópulo Vicente García, singer and composer
- March 24 – Muthuswami Dikshitar, poet and composer
- May 1 – Sophia Dussek, composer and musician
- June 4 – Francesco Molino, guitarist and composer
- June 13 – Antoni Radziwiłł, politician and musician
- July 5 – William Crotch, composer
- July 9 – Matthew Lewis, librettist and writer
- August 2 – José Ángel Lamas, composer
- August 21 – Giuseppe Baini, composer and priest
- August 31 – François de Fossa, guitarist and composer
- September 17 – Margrethe Schall, ballerina
- October 6 – Johann Anton André, German composer
- October 15 – Bernhard Henrik Crusell, clarinettist and composer
- October 21 – Giuseppe Baini, composer and music critic
- October 30 – Catterino Cavos, organist, conductor and composer
- December 6 – Nicolo Isouard, Maltese composer
- December 16 – François-Adrien Boïeldieu, composer
- December 25 – Antun Sorkočević, writer, composer and diplomat
- date unknown
- *Joseph Antonio Emidy, violinist and composer
- *Andrea Nozzari, operatic tenor
- *Giovanni Schmidt, Italian librettist
Deaths
- January 15 – Giovanni Battista Sammartini, organist and composer
- May 1–4? — Francesco Barsanti, composer; recorder & oboe virtuoso
- May 7 – Cornelius Heinrich Dretzel, organist and composer
- May 9 – Vittoria Tesi, operatic contralto
- June 11 – Egidio Duni, composer
- July 26 – Alessandro Besozzi, oboist and composer
- November 1 – Pierre-Joseph-Justin Bernard, librettist and writer
- November 7 – François Rebel, composer
- December 9 – Pietro Gnocchi, composer
- date unknown – Rosa Scarlatti, opera singer