1756 in music

Events

• Christoph Willibald Gluck is knighted by Pope Benedict XIV
• Johann Christian Bach settles in Italy.

Classical music

• Joseph Haydn – Keyboard Concerto No. 1 in C, Hob. XVIII/1

Opera

• Pasquale Cafaro – La disfatta di Dario
• Baldassare Galuppi – Idomeneo
• Pierre van Maldere – Le Déguisement pastorale
• Jean-Philippe Rameau – Zoroastre
• Antonio Sacchini – Fra Donato

Births

• January 27 – Wolfgang Amadeus Mozart (died 1791)
• May 7 – Thomas Linley the younger (died 1778)
• June 20 – Joseph Martin Kraus (died 1792)
• September 27 - Christoffer Christian Karsten (died 1827)

Deaths

• January 25 – Christian Vater, organ and harpsichord builder (born 1679)
• April 10 – Giacomo Antonio Perti, composer (born 1661)
• April 13 – Johann Gottlieb Goldberg (born 1727)
• August 18 – Erdmann Neumeister, hymnologist (born 1671)
• September 19 – Josef Antonin Sehling
• date unknown – Riccardo Broschi, composer (born c. 1698)