16 January - The day after her New York concert debut, Kathleen Ferrier writes to her sister: "Some of the critics are enthusiastic, others unimpressed".
April - The death of Alice, Viscountess Wimborne, lover of William Walton, ends their 14-year affair.
5 June - Opening of the first Aldeburgh Festival, founded by Benjamin Britten, Eric Crozier and Peter Pears.
13 October - Kathleen Ferrier joins Sir John Barbirolli and the Hallé Orchestra in a broadcast performance of Mahler's song cycle Kindertotenlieder.
October - The Duke of Edinburgh is introduced to musical comedy star Pat Kirkwood in her dressing room after a show. They are seen together at a restaurant, creating a scandal in the newspapers.
Steuart Wilson becomes head of music at the BBC; the appointment results in the retirement of Sir Adrian Boult as chief conductor of the BBC Symphony Orchestra.
Harman Grisewood replaces George Barnes as controller of the BBC Third Programme.
The National School of Opera is founded by Joan Cross.
Anne Shelton - "If You Ever Fall in Love Again" (Dick Farrelly)
Dorothy Squires - "A Tree in the Meadow" (Billy Reid)
Malcolm Arnold - The Smoke (Overture), Op. 21
Arnold Bax - Magnificat
Benjamin Britten - Saint Nicolas, for tenor soloist, children's chorus, chorus, and orchestra
Ralph Vaughan Williams - Partita for Double String Orchestra
Arthur Bliss - The Olympians
Norman Demuth - Le Flambeau
William Alwyn - The Fallen Idol directed by Carol Reed, starring Ralph Richardson.
Arnold Bax - Oliver Twist directed by David Lean, starring Alec Guinness.
Brian Easdale - The Red Shoes directed and produced by Michael Powell and Emeric Pressburger.
Constant Lambert - Anna Karenina, starring Vivien Leigh and Ralph Richardson.
Elisabeth Lutyens - Penny and the Pownall Case (the first feature film to be scored by a female British composer).
Ralph Vaughan Williams - Scott of the Antarctic, starring John Mills.
William Walton - Hamlet, directed by and starring Laurence Olivier.
John Wooldridge - The Guinea Pig, starring Richard Attenborough.
10 March - Carissima, starring Ginger Rogers and David Hughes, opens at the Palace Theatre and runs for 488 performances.
22 December - High Button Shoes (Jule Styne and Sammy Cahn) opens at the Hippodrome and runs for 291 performances.
A Date with a Dream, starring Terry-Thomas, Jeannie Carson and Wally Patch.
One Night with You, directed by Terence Young and starring Nino Martini, Patricia Roc and Bonar Colleano.
17 January - Mick Taylor, guitarist
19 January - Amanda Holden, English playwright, lyricist and composer
29 January - Mel Pritchard, drummer (died 2004)
3 February - Gavin Henderson, English trumpet player and conductor
4 March - Chris Squire, guitarist, singer and songwriter
22 March - Andrew Lloyd Webber, composer
16 April - Robert Kirby, arranger (died 2009)
28 April - Scott Fitzgerald (William McPhail), singer
12 May - Steve Winwood, R&B singer
15 May - Brian Eno, synthesizer virtuoso and composer
21 May - Leo Sayer, singer-songwriter
29 May - Michael Berkeley, composer
6 June - Richard Sinclair, bass player (Caravan, The Wilde Flowers, Camel, and Hatfield and the North)
1 July - John Ford, English-American singer, songwriter and guitarist (Strawbs, The Monks, and Elmer Gantry's Velvet Opera)
4 July - Jeremy Spencer, English guitarist (Fleetwood Mac)
5 July - Alan Hazeldine, pianist and conductor (died 2008)
21 July - Cat Stevens (Steven Demetre Georgiou), singer-songwriter
2 August - Andy Fairweather Low, guitarist, songwriter, producer and vocalist
26 September - Olivia Newton-John, singer and actress
3 October - Ian MacDonald (Ian MacCormick), music critic (died 2003)
11 October - David Rendall, operatic tenor
3 November - Lulu (Marie McDonald McLaughlin Lawrie), singer and actress
1 December - Colin Sell, pianist
20 December - Alan Parsons, engineer and record producer
9 January - Violet Gordon-Woodhouse, harpsichordist and clavichordist, 75
21 February - Frederic Lamond, pianist, 80
17 May - David Evans, composer, 74
14 June - John Blackwood McEwen, composer, 80
8 July - Reginald Somerville, composer and actor, 81
20 August - David John de Lloyd, composer, 65
12 September - Rupert D'Oyly Carte, impresario, 70
20 November - Robert Carr, baritone, 67
24 November - Nellie Wallace, music hall star, actress, comedian, dancer and songwriter, 78
14 December - R. O. Morris, British composer and teacher, 62
31 December - Ethel Barns, violinist, pianist and composer, 74
1948 in British music Wikipedia
This is a summary of 1948 in music in the United Kingdom.