Briefwechsel
Briefe von Schönberg an K
| Empfänger | Firma |
| k.k. Infanterieregiments | |
| k.k. Ministerium für Kultur und Unterricht | |
| k.k. Postamt Swinemünde | |
| Kammermusikkomite Mozarteum | |
| Kartonfabrik Cito | |
| Katholischen Kirche | |
| Knize & Comp | |
| Kompass | |
| Konkursverwalter von Schlebrügge | |
| Kontophot, GmbH | |
| Konzert-Dir Theo Reimer | |
| Kosmos | |
| Krankenkasse | |
| K[öniglich-]ung[arisches] Honved Min | |
| Kaba, L. | Jazz Disques |
| Kabasta, Hans | Radio Verkehrs AG |
| Käfer, Johann | |
| Kahn, Erich Itor | |
| Kallen, Horace M. | |
| Kallir, Otto | Galerie St. Etienne |
| Kallir, Otto | Johannespresse |
| Kallir, R.F. | |
| Kallmeyer, Georg | Verl Georg Kallmayer |
| Kalmus, Alfred | Kalmus |
| Kalmus, Alfred | Philharmonia-Verlag |
| Kalmus, Alfred | U.E. |
| Kalmus, Edwin F. | Kalmus |
| Kaltenborn, Fritz | |
| Kandinsky, Wassily | |
| Kanitz, Ernest | USC |
| Kaplan, Abraham | UCLA |
| Kapp, Julius | |
| Kappelmacher, Robert | |
| Karbach, Friedrich | |
| Kardegg, Berthold | |
| Karman, Ivor | New World String Quartet |
| Karner, Arnold | |
| Karpath, Ludwig | |
| Kassowitz, Gottfried | |
| Kassowitz, Ludwig | |
| Kastle, Leonard | |
| Katz, Hedi | Music School |
| Katz, M. | Israel Min of Educ & Cult |
| Kaufmann, [Harald?] | |
| Kayser, Hans | |
| Keith, Irma | Grand Opera Guild |
| Keller, Alfred | |
| Keller, Grete | |
| Keller, Hans | Music-Survey |
| Keller, [?] | |
| Kerr, Harrison | ACA |
| Kerr, Harrison | U.S. Army |
| Kerr, W.M. | U.S. Off of the Voters |
| Kersten, Ilse | |
| Kestenberg, Leo | Palestine Orchestra |
| Kestenberg, Leo | Preuss Min für Wiss |
| Keyser, John de | Preeman Matthews |
| Khuner, Felix | |
| Kiegel, Alexander | |
| Kienast, Viktor | |
| Kiesgen, C. | Soc Mus Indépendante |
| Kindler, Hans | National SO Assn |
| King, Craig | Sesquicentennial Int Exp |
| King, Eleanor | |
| King, Fred | Station KFAC |
| Kirchberger, H. | |
| Kirchenberg van Eyk | |
| Kissel, Natalie P. | ASCAP |
| Kissinger, Jack | |
| Klatte, Wilhelm | |
| Klatzkin, Jacob | Verl Eschkol |
| Kleiber, Erich | |
| KleinSmid, Rufus B. von | USC |
| Klemperer, Johanna | |
| Klemperer, Otto | |
| Klenau, Paul von | |
| Klepper, Leon | |
| Klingmann, A.W. | ASCAP |
| Klitsch, Wilhelm | |
| Klug, Ludwig | |
| Knight, Lovina May | |
| Knoblauch, Robert | R.K. Konzert-Agentur |
| Knopf, Alfred H. | American Mercury |
| Knudsen, Paul | |
| Knudsen, Vern O. | UCLA |
| Koblitz, Milton S. | |
| Körber, [?] | Akademie der Künste |
| Körner, Theodor | Vienna |
| Kohn, Robert D. | New York World's Fair |
| Kokoschka, Oskar | |
| Kolb, Leon | American Jewish Congress |
| Koldofsky, Adolf | |
| Kolisch, Henrietta | |
| Kolisch, Rudolf | Univ of Wisconsin |
| Kolm, L.C. | Inst für Friedenswissenschaft |
| Kolodin, Irving | |
| Konnerth, Alfred | |
| Koons, Walter E. | NBC |
| Kopsch, Julius | Gen dt Tonsetzer |
| Korngold, Julius | |
| Korytowski, Hermann | Emil Heinicke AG |
| Kostal, Irwin | |
| Kostetzky, Eaghor | |
| Koussevitzky, Serge | Boston SO |
| Koussevitzky, Serge | Koussevitzky Fndn |
| Kowalski, Max | |
| Krasner, Louis | Minneapolis SO |
| Kratka, I. | Relax Records |
| Kraus, Else C. | |
| Kraus, Karl | |
| Krauss, Clemens | Staatsoper |
| Krenek, Ernst | Hamline University |
| Krenek, Ernst | Vassar College |
| Krieg, Walter | Universitätsbuchhandlung |
| Kroll, Erwin | Nordwestdeutscher Rundf |
| Krombholz, Fritz E. | Aust-Am Conserv |
| Krüger, Viktor | |
| Kruttge, E. | |
| Küchenmeister, Heinrich J. | H.J.K. & Co |
| Kugel, Georg | KonzertDir G. Kugel |
| Kulka, Ernest W. | |
| Kulka, Heinrich | Buchh Richard Lanyi |
| Kurth, William H. | LC |
| Kutzschbach, Hermann | |
| Kyogoku, Takatoshi |
