Name
- Ingpen, Joan, of Ingpen & Williams agents1
- Isaacs, Leonard, BBC Home Service Music Organiser, 1909-19971
- Isherwood, Cherry, wife of Henry Isherwood1
- Jackson, Harry Croft, of the BBC1
- Jeffries, Frances, sec Society for the Promotion of New Music1
- Johnson, Christine, sec to Leonard Lawrence1
- Jones, Kenneth V, of Wimbledon1
- Jones, Philip, trumpeter and conductor, 1928-20001
- Josephs, Wilfred, composer, 1927-19971
- Jourdain, —, musician1
- Jurres, André, musicologist1
- Kaufman, Annette, pianist, 1914-2016, http://isni.org/isni/000000...1
- Kaufman, Louis, musician, 1905-1994, http://isni.org/isni/000000...1
- Keys, Elizabeth, of London Management1
- Kleinert, R, of Berlin1
- Kleinert, —, Mrs. wife of R Kleinert1
- Koch, Karl O, head of music Westdeutscher Rundfunk1
- Konrad, alias 'Konrad Nachtigall', Meistersinger1
- Kramm, Hugo, of Norwegian Radio1
- Krein, Michael, saxophonist1