Kabalevsky, Dmitry Kadosa Pál Kákonyi Árpád Kállay Gábor Kállay Géza Kalmár László Kander, John & Ebb, Fred Karai József Károlyi Pál Kayser, Heinrich Ernst Kecskés D. Balázs Kerényi György dr. Kerényi Miklós György Kerényiné Kéri Margit Kesztler Lőrinc Kígyósi Árpád Király László Kocsár Miklós Kocsis Zoltán Kodály Zoltán Köhler, Ernesto Köhler, Louis Kókai Rezső Kökényessy Miklós Komjáthy Aladárné Kondor Ádám Konyusz, J. E. Kósa Gábor Kósa György Kovács Béla Kovács Gábor Kovács Mátyás Kováts Barna Krebs, Johann Ludwig Kreek, C. Kreutzer, Rodolphe Kroó György Kuhlau, Friedrich Kühnel, August Kummer, Friedrich August Kurtág György Kuti Sándor Kaczmarczyk Adrienne (edited by) Kaczmarczyk Adrienne (selected and annotated by) Kaczmarczyk Adrienne (edited by) Kaczmarczyk Adrienne (preface by) Kádár Imre (words by) Kállay Gábor (arranged by) Kállay Géza (edited by) Kalmár László (transcribed by) Kalmár László (edited by) Kalmár László (edited and continuo realization by) Kalmár Márton (edited by) Kann, H. (edited by) Kányádi Sándor (words by) Kaplinski, J. (words by) Kaposi Gergely (edited by) Kapuvári Béla (words by) Karafiáth Orsolya (words by) Karai József (arranged by) Karai József (compiled and edited by) Kardos István (arranged by) Károli Gáspár (words by) Károli Gáspár (translated by) Károlyi Amy (words by) Károlyi Pál (edited by) Károlyi Pál (piano score by) Károlyi Pál (edited by) Károlyi Pál (published and piano score by) Kasic, Gilles (transcribed by) Kassai István (edited by) Kassai Mária (compiled by) Kassák Lajos (words by) Kecskeméti István (edited by) Kecskeméti István (edited by) Kecskeméti László (arranged by) Kedves Tamás (edited by) Kedves Tamás (edited by) Keil Ernő (transcribed by) Kelemen László (edited by) Keleti Artur (words by) Kemény Endre (transcribed by) Kemény Krisztina (edited by) Keönch László Farkas (designed by) Képes Géza (words by) Kerékfy Márton (transcribed and edited by) Kerényi György dr. (edited by) Kerényi György dr. (translated by) Kerényi György dr. (words by) Keresztúry Dezső (words by) Kertész István (edited by) Kertész Katalin (words by) Keszler György (edited by) Kesztler Lőrinc (transcribed by) Kesztler Lőrinc (piano accompaniment by) Kesztler Lőrinc (edited by) Khayyám, Omar (words by) Kis Károly (translated by) Kisfaludy Károly (words by) Kisfaludy Sándor (words by) Kiss Dénes (transcribed by) Kiss Jenő (translated by) Kiss Lajos (edited by) Kiss Virág Eszter (played by) Kistétényi Melinda (translated by) Kistétényi Melinda (words by) Kistler-Liebendörfer, Bernhard (transcribed by) Kistler-Liebendörfer, Bernhard (edited by) Kiszely Gyula (words by) Kiszely-Papp Deborah Marie (edited by) Klembala Géza (continuo realization by) Klembala Géza (edited by) Klengel, J. (transcribed by) Klingenberg, Johannes (selected by) Kocsis Zoltán (arranged by) Kocsis Zoltán (for piano transcribed by) Kocsis Zoltán (transcribed by) Kocsis Zoltán (for two pianos transcribed by) Kodály Zoltán (selected by) Kola József (transcribed by) Kola József (edited by) Kola József (arranged by) Kölcsey Ferenc (words by) Koloss István (edited by) Koloss István (edited by) Koloss István (piano score by) Komjáthy Aladárné (edited by) Komjáthy Aladárné (compiled by) Komjáthy Aladárné () Komlós Katalin (words by) Koncz Tamás (transcribed by) Környei Elek (words by) Kósa Gábor (edited by) Kósa Gábor (arranged by) Kosztolányi Dezső (words by) Kosztolányi Dezső (translated by) Kovács Attila Ferenc (compiled and edited by) Kovács Gábor (edited by) Kovács Gábor (choreographies by) Kovács Imre (edited by) Kovács Imre (selected, transcribed and edited by) Kovács Imre (edited by) Kovács Lóránt (edited by) Kovács Lóránt (edited by) Kovács Lóránt (selected and edited by) Kovács Mátyás (edited by) Kovács Mátyás (compiled from the composer's manuscripts by) Kovács Mátyás (edited by) Kovács Mátyás (piano score by) Kováts Barna (edited by) Kováts Barna (revised and edited by) Kováts Barna (edited by) Kováts Gábor (edited by) Kováts Gábor (revised and fingerig by) Kováts Gábor (edited by) Kováts Gábor (selected and edited by) Kováts Gábor (compiled and revised by) Kövesdy János (words by) Kövesdy János (translated by) Kraszna László (edited by) Kraszna László (transcribed by) Krause Annamária (edited by) Krause, Andreas dr. (edited by) Kriza János (words by) Kubina Péter (compiled and edited by) Kulifay Gyula (words by) Kuszing János (edited by) Kuszing János (edited by) Kuszing János (transcribed and compiled by)