Editing 1940 in music (section)

==Deaths==
*[[January 7]] – [[Effie Crockett]], composer of "Rock-a-Bye Baby", 83
*[[January 17]] – [[Carl Boberg]], hymn-writer, 80
*[[February 2]] – [[Nikolay Kedrov Sr.]], composer, 68
*[[February 17]] – [[Gus Elen]], music hall singer, 77
*[[February 28]] – [[Arnold Dolmetsch]], musical instrument maker, 82
*[[March 18]] – [[Lola Beeth]], operatic soprano, 78
*[[March 25]] – [[Ion Nonna Otescu|Nonna Otescu]], composer, 51
*[[April 9]] – [[Rosa Newmarch]], music writer, 82
*[[April 18]] – [[Florrie Forde]], Australian-born English [[music hall]] singer, 64
*[[April 28]] – [[Luisa Tetrazzini]], soprano, 68
*[[May 23]] – [[Andrey Rimsky-Korsakov]], musicologist, 61
*[[May 29]] – [[Mathilda Grabow]], operatic soprano, 88
*[[June 8]] – [[Frederick Converse]], composer, 69
*[[June 19]] – [[Albert Reiss]], operatic tenor, 70
*[[June 20]]
**[[Jehan Alain]], organist and composer, 29 (killed in action)
**[[Emma Nevada]], operatic soprano, 81
*[[July 10]] – Sir [[Donald Francis Tovey]], musicologist and composer, 64
*[[August 8]]
**<!--August 8-->[[Alessandro Bonci]], operatic tenor, 70
**<!--August 8-->[[Johnny Dodds]], jazz musician, 48 (heart attack)
*[[August 10]] – [[Alessandro Bonci]], lyric tenor, 70
*[[August 16]] – [[Eduard Sõrmus]], Estonian violinist, 62
*[[August 21]] – [[Paul Juon]], composer and teacher, 68
*[[August 29]] – [[Arthur De Greef (composer)|Arthur De Greef]], pianist and composer, 77
*[[September 2]] – [[Giulio Gatti-Casazza]], director of the Metropolitan Opera, 71
*[[September 30]] – [[Walter Kollo]], operetta composer, 62
*[[October 5]] – [[Silvestre Revueltas]], composer, 40 (pneumonia)
*[[November 6]] – [[Ivar F. Andresen]], operatic bass, 44
*[[November 12]] – [[Alejandro García Caturla]], composer, 34
*[[November 22]] – [[Jorge Bravo de Rueda]], pianist and composer, 45
*[[November 23]] – [[Billy Jones (1930s singer)|Billy Jones]], US singer, 51
*[[December 3]] – [[Walborg Lagerwall]], Swedish violinist, 89
*[[December 5]] – [[Jan Kubelik]], violinist, 60
*[[December 11]] – [[J. Harold Murray]], baritone, 49 (nephritis)
*[[December 15]] – [[Blanche Marchesi]], mezzo-soprano and voice teacher, 77
*[[December 16]] – [[William Wallace (Scottish composer)|William Wallace]], composer, 80
*[[December 21]] – [[Hal Kemp]], jazz musician and bandleader, 36 (complications following car accident)
*[[December 24]] – [[Billy Hill (songwriter)|Billy Hill]], songwriter, 41
*''date unknown'' – [[Marguerite Ugalde]], operatic mezzo-soprano (born 1862)