Kadosa Pál Kákonyi Árpád Kállay Gábor Kállay Géza Kalmár László Kander, John 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, Cyrillus Kreutzer, Rodolphe Kroó György Kühnel, August Kummer, Friedrich August Kurtág György Kuti Sándor Kaczmarczyk Adrienne (preface by) Kaczmarczyk Adrienne (edited by) Kaczmarczyk Adrienne (selected and annotated by) Kaczmarczyk Adrienne (edited by) Kaczmarczyk Adrienne (revised by) Kádár Imre (words by) Kállay Gábor (arranged by) Kállay Géza (edited by) Kalmár László (transcribed by) Kalmár László (editing and continuo realization by) Kalmár László (edited by) Kalmár Márton (edited by) Kányádi Sándor (words by) Kaplinski, J. (words by) Kaposi Gergely (edited by) Kapuvári Béla (words by) Karafiáth Orsolya (words by) Karai József (compiled and edited by) Karai József (arranged by) Kardos István (arranged by) Károli Gáspár (words by) Károli Gáspár (translated by) Károlyi Amy (words by) Károlyi Pál (edited by) Károlyi Pál (edited by) Károlyi Pál (publishing and piano score by) Károlyi Pál (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) Kerékfy Márton (in collaboration with) Kerényi György dr. (translated by) Kerényi György dr. (words by) Kerényi György dr. (edited by) Keresztúry Dezső (words by) Kertész István (edited by) Kertész Katalin (words by) Keszler György (edited by) Kesztler Lőrinc (edited by) Kesztler Lőrinc (transcribed by) Kesztler Lőrinc (piano accompaniment 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 (words by) Kistétényi Melinda (translated by) Kistler-Liebendörfer, Bernhard (transcribed by) Kistler-Liebendörfer, Bernhard (edited by) Kiszely Gyula (words by) Kiszely-Papp Deborah Marie (edited by) Klembala Géza (edited by) Klembala Géza (continuo arranged by) Klengel, Julius (transcribed by) Klingenberg, Johannes (selected by) Kocsis Zoltán (transcribed by) Kocsis Zoltán (for two pianos transcribed by) Kocsis Zoltán (piano arrangement by) Kocsis Zoltán (arranged by) Kodály Zoltán (selected by) Kola József (transcribed by) Kola József (arranged by) Kola József (edited by) Kölcsey Ferenc (words by) Koloss István (edited by) Koloss István (piano score by) Koloss István (edited by) Komjáthy Aladárné (edited by) Komjáthy Aladárné (compiled by) Komlós Katalin (words by) Koncz Tamás (transcribed by) Környei Elek (words by) Kósa Gábor (arranged by) Kósa Gábor (edited by) Kosztándy Réka (arranged 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 (selected and edited by) Kovács Lóránt (edited by) Kovács Mátyás (edited by) Kovács Mátyás (piano score by) Kovács Mátyás (edited by) Kovács Mátyás (compiled from the composer's manuscripts by) Kováts Barna (edited by) Kováts Barna (edited by) Kováts Gábor (edited by) Kováts Gábor (compiled and revised by) Kováts Gábor (edited by) Kováts Gábor (revised with fingerings by) Kováts Gábor (selected and edited by) Kövesdy János (words by) Kövesdy János (translated by) Kraszna László (transcribed by) Kraszna László (edited 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 (transcribed and compiled by) Kuszing János (edited by)