Editing 1921 in music (section)

==Deaths==
*[[January 23]] – [[Władysław Żeleński (musician)|Władysław Żeleński]], pianist, organist and composer (born 1837)
*[[February 8]] 
**<!--February 8-->[[George Formby Sr]], singer (born 1875; pulmonary tuberculosis)
**<!--February 8-->[[Francisco D'Andrade]], opera singer (born 1856)
*[[March 14]] – [[Gustave Barnes]], artist and musician (born 1877)
*[[March 24]] – [[Déodat de Séverac]], composer (born 1872)
*[[April 3]] – [[Annie Louise Cary]], operatic contralto (born 1842)
*[[April 5]] – [[Alphons Diepenbrock]], composer and writer (born 1862)
*[[April 7]] – [[Víctor Mirecki Larramat]], cellist (born 1847)
*[[April 20]] – [[Tony Jackson (jazz musician)|Tony Jackson]], pianist, singer and composer (born 1876; cirrhosis of the liver)
*[[May 4]] – [[Max Kalbeck]], music writer and critic (born 1850)
*[[June 8]] – [[Natalie Bauer-Lechner]], viola player (born 1858)
*[[July 9]] – [[Marianne Brandt (contralto)|Marianne Brandt]], operatic contralto (born 1842)
*[[August 2]] – [[Enrico Caruso]], operatic tenor (born 1873; peritonitis)
*[[August 8]] – [[Arthur Pougin]], music critic (born 1834)
*[[September 27]]
**<!--September 27-->[[Engelbert Humperdinck (composer)|Engelbert Humperdinck]], composer (born 1854; heart attack)
**<!--September 27-->[[Zdzisław Birnbaum]], violinist and conductor (born 1878)
*[[September 28]] – [[Princess Pauline von Metternich]], patron of composers including Wagner and Smetana (born 1836)
*[[October 4]] – [[Sophie Stehle]], operatic soprano (born 1838)
*[[November 20]] – [[Christina Nilsson]], operatic soprano (born 1843)
*[[November 25]] – [[Théodore Lack]], pianist (born 1846)
*[[November 29]] – [[Ivan Caryll]], composer of operettas (born 1861; haemorrhage)
*[[December 10]] – [[Victor Jacobi]], composer of operettas (born 1883; illness)
*[[December 16]] – [[Camille Saint-Saëns]], composer (born 1835; tuberculosis)
*[[December 25]] – [[Hans Huber (composer)|Hans Huber]], composer (born 1852)