| King's College Choir Cambridge, Sir David Willcocks | 1 | 1990 |
| King's College Choir, Cambridge | 14 | 1959 - 1991 |
| King's College Choir, Stephen Cleobury | 1 | 1991 |
| The King's Consort And Choir / Robert King | 1 | 2001 |
| The King's Consort And Choir | 1 | 2001 |
| The King's Consort With James Bowman | 1 | 1991 |
| The King's Consort, Robert King | 7 | 1989 - 2000 |
| The King's Consort | 8 | 1989 - 2000 |
| The King's Noyse | 2 | 1995 |
| The King's Singers | 1 | 1973 |
| The Kingsway Strings | 1 | |
| Kingsway Symphony Orchestra | 1 | 1983 |
| The Kingsway Symphony Orchestra | 1 | 1983 |
| King's College Choir, Cambridge, Sir David Willcocks | 1 | 1988 |
| King's College Choir, Cambridge, Stephen Cleobury | 1 | 1988 |
| Kir Isaija Srbin (Kyr Isaiah The Serb) | 1 | 1989 |
| Kir Joakim | 1 | 1987 |
| Kir Stefan the Serb | 1 | 1987 |
| Kira Kira | 1 | 2019 |
| Kirchenchor Waldorf | 1 | 2015 |
| Kiri Te Kanawa | 23 | 1966 - 2002 |
| Kiri Te Kanawa With The London Philharmonic Orchestra | 1 | 1991 |
| Kiri Te Kanawa With The National Philharmonic Orchestra | 1 | 1991 |
| Kiri Te Kanawa, Boston Symphony Orchestra, Seiji Ozawa | 1 | 1988 |
| Kiri Te Kanawa, Bryn Terfel, Renée Fleming, Jerry Hadley, Hei-Kyung Hong, Julien Robbins | 1 | 1996 |
| Kiri Te Kanawa, Dawn Upshaw, Ferruccio Furlanetto, Anne Sofie Von Otter | 1 | 1991 |
| Kiri Te Kanawa, London Philharmonic Orchestra | 1 | 1993 |
| Kiri te Kanawa, Rainer Küchl, Wiener Kammerorchester, György Fischer | 1 | 1991 |
| Kiri Te Kanawa, Renato Capecchi, Thomas Hampson, Dawn Upshaw | 1 | 1991 |
| Kiri Te Kanawa, Wiener Kammerorchester, György Fischer | 2 | 1984 - 1991 |
| Kiril Kondrashin | 13 | 1958 - 1984 |
| Kirill Ershov | 1 | 2007 |
| Kirill Kondrashin | 7 | 1980 - 1995 |
| Kirill Kondrashin, Antal Dorati | 1 | 1995 |
| Kirov Opera Chorus | 1 | 1996 |
| Kirov Orchestra | 2 | 1996 |
| Kirov Orchestra, Gergiev | 1 | 2004 |
| Kirshbaum, McPhee, Milnes, SNO, Gibson | 1 | 1992 |
| Kirsteen Henderson | 1 | |
| Kirsten Flagstad | 14 | 1936 - 2005 |
| Kirsten Flagstad With The Vienna Philharmonic Orchestra Conducted By Sir Adrian Boult | 1 | 1960 |
| Kirsten Flagstad, George London, Set Svanholm, Oda Balsborg, Hetty Plumacher, Ira Malaniuk | 3 | 1960 - 1961 |
| Kirsten Flagstad, Gerald Moore | 1 | 1967 |
| Kirsten Flagstad, Sir Adrian Boult And The London Philharmonic Orchestra | 1 | 1974 |
| Kirsten Flagstad,London Philharmonic Orchestra,Sir Adrian Boult | 1 | 1974 |
| Kirsti Hjort | 1 | |
| Kirsti Hjort (Klavier), Von Der Goltz Quartett | 1 | |
| Kirsti Hjort-Trio | 1 | |
| Kirsty Hobkirk | 1 | 2020 |
| Kirsty Hopkins | 1 | 2015 |
| Kirsty Nelson | 1 | 2003 |
| Kirsty Whatley | 1 | |
| Kiyoko Tanaka | 1 | |
| Kjell Baekkelund | 2 | 1976 - 1991 |
| Kjell Baekkelund, Oslo Philharmonic Orchestra, Odd Gruner-Hegge | 1 | 1991 |
| Kjell Bækkelund | 1 | |
| Kjell Olsson | 1 | |
| Klaas Hoek | 1 | |
| Klára Koermendi | 1 | 1993 |
| Klára Körmendi | 4 | 1976 - 2001 |
| Klára Makkay | 1 | |
| Klára Würtz | 7 | |
| Klarinette: Jack Bremer, Flöte: Hubert Barwahser, Harfe: Osian Ellis | 1 | |
| Klas Torstensson | 1 | |
| Klaus Fischer-Dieskau | 1 | |
| Klaus Groth | 2 | 1960 - 1985 |
| Klaus Heitz | 1 | |
| Klaus Hirte | 1 | 1975 |
| Klaus Hirte / Orchester Willy Mattes | 1 | |
| Klaus Hirte, Friedrich Lenz, Ilse Gramatzki, Siegfried Jerusalem, Jeanette Scovotti Und Chor Des Bayerischen Rundfunks / Münchner Rundfunkorchester, Heinz Wallberg | 1 | 1979 |
| Klaus Hirte, Ilse Gramatzki, Friedrich Lenz, Peter Lika, Siegfried Jerusalem, Jeanette Scovotti Und Chor Des Bayerischen Rundfunks / Münchner Rundfunkorchester, Heinz Wallberg | 1 | 1979 |
| Klaus Hückstädt | 1 | 1998 |
| Klaus König | 1 | |
| Klaus Lang | 2 | 1982 - 1985 |
| Klaus Martin Ziegler | 2 | |
| Klaus Matzl | 1 | |
| Klaus Mertens | 1 | 1985 |
| Klaus Pohlers | 7 | 1962 - 1981 |
| Klaus Pohlers, Alfred Sous, Günter Kehr, Georg Schmid, Reinhold Buhl, Martin Galling | 1 | 1965 |
| Klaus Schlupp | 1 | |
| Klaus Schneider | 1 | 1985 |
| Klaus Schochow | 2 | 1988 |
| Klaus Tennstedt | 13 | 1981 - 2005 |
| Berliner Philharmoniker, Klaus Tennstedt | 1 | 2005 |
| Klaus Thunemann | 4 | 1988 - 2011 |
| Klaus Thunemann · Thomas Friedli | 1 | 1992 |
| Klaus Thunemann, Academy Of St Martin In The Fields, Sir Neville Marriner | 1 | 1991 |
| Klaus-Jürgen Küper | 1 | |
| Klaviertrio Amsterdam | 1 | |
| Klemetti-Opiston Kamarikuoro | 1 | |
| Klemetti-Opiston Kamarikuoro Ja Ylioppilaskunnan Laulajat | 1 | 1978 |
| Knabenchor der St. Hedwigskathedrale | 1 | 2004 |
| Knabenchor der St. Willibrords-Kirche, Amsterdam | 1 | |
| Knabenchor des Gymnasiums Eppendorf | 1 | |
| Knabenchor Des Gymnasiums Eppendorf, Städtischer Chor Hamburg | 1 | |
| Knabenchor Des Witteisbacher Gymnasiums Munchen | 1 | 2002 |
| Knabenstimmen des Regensburger Domchores | 1 | |
| Kneller Hall | 1 | 1957 |
| The Knightsbridge Opera Orchestra And Choir | 1 | 1971 |
| Knut Nysted | 1 | 2013 |
| Knut Schoch | 3 | 2000 |
| Kodály Quartet | 8 | 1988 - 2002 |
| Kodály Quartet And Jenö Jandó | 1 | 1990 |
| Koeckert-Quartett | 1 | 1957 |
| Hermann Koenig | 1 | 1988 |
| Kohon Quartet | 1 | 1965 |
| Koki Katano | 1 | 1998 |
| Kölner Kammerchor | 1 | |
| Kölner Kammerorchester | 2 | 1969 - 1998 |
| Kölner Rundfunk-Sinfonie-Orchester | 2 | 1960 - 1989 |
| Kölner Rundfunkchor | 3 | 2013 |
| Kölner Rundfunkorchester | 2 | |
| Koloman von Pataky | 1 | 1956 |
| Königl. Hofkapelle, Stockholm | 1 | 1958 |
| Königlichen Hofkapelle, Stockholm | 1 | 1958 |
| Koninklijke Zangvereniging "Mastreechter Staar" | 6 | 1962 - 1966 |
| Konrad Hünteler | 1 | 1982 |
| Konrad Hünteler, Capella Clementina | 1 | 1982 |
| Konrad Junghänel | 2 | 1990 - 1992 |
| Konrad Paumann | 1 | 1990 |
| Konrad Ragossnig | 3 | 1977 - 1987 |
| Konrad Ragossnig, Capella Academica Wien, Eduard Melkus | 1 | 1977 |
| Konrad Ruhland | 3 | 1967 - 1968 |
| Konstantin Ivanov | 2 | 2014 |
| Konstantin Lisovsky | 1 | 1976 |
| Konstantin Scherbakov | 3 | 1997 - 2006 |
| Konstantin Shilovsky | 1 | 1992 |
| Konstanty Andrzej Kula, Igor Kipnis, Stuttgart Chamber Orchestra, Karl Munchinger | 1 | 1988 |
| Konstanty Andrzej Kulka, Igor Kipnis | 1 | |
| Konstanty Andrzej Kulka, Igor Kipnis, Stuttgart Chamber Orchestra, Karl Munchinger | 1 | 1988 |
| Konzertgebouw-Orchester Amsterdam | 1 | |
| Konzertgebouw-Orchester Amsterdam, Willem Mengelberg | 2 | 1930 |
| Konzertgruppe Der Schola Cantorum Basiliensis | 4 | |
| Konzertgruppe der Schola Cantorum Basiliensis, Dir:. August Wenzinger | 1 | |
| Konzertvereinigung Wiener Staatsopernchor | 3 | 1996 |
| Konzertvereinigung Wiener Staatsopernchor Wiener Philharmoniker | 1 | 1994 |
| Konzertvereinigung Wiener Staatsopernchor Wiener Philharmoniker, Georg Solti | 1 | 1994 |
| Konzertvereinigung Wiener Volksopernorchester | 1 | |
| Koor De Lofstem Te Hardinxveld | 1 | |
| Koor En Orkest Van De Accademia Di Santa Cecilia, Rome | 1 | 1962 |
| Koor En Orkest Van De Scala Opera Te Milaan | 1 | |
| Koor En Orkest Van Het Nationaal Opera Theater Te Parijs | 1 | 1960 |
| Koor Van De Stedelijke Opera Berlijn, Hermann Lüddecke / Groot Opera-Orkest, Berislav Klobucar | 1 | |
| Koor Van De Weense Staatsopera | 1 | 1962 |
| Koor Van De Wiener Volksoper | 1 | 1965 |
| Koorvereniging "Pro Musica" | 1 | 1963 |
| Köpenhamns Symfoniorkester, Lavard Friisholm | 1 | 1981 |
| The Koppel Quartet | 1 | 1956 |
| Kör och medlemmar ur Kgl. Hovkapellet | 1 | 1975 |
| Kör och Orkester från Bayerska Statsoperan i München | 1 | 1977 |
| Kör och Symphonie-Orchester Graunke | 1 | 1977 |
| Kornél Zempléni | 1 | |
| Kostas Paskalis | 1 | 1981 |
| Kostelanetz And Orch. | 1 | 1953 |
| Kostelanetz And Orchestra | 1 | 1953 |
| Kosti Vehanen | 6 | 1936 - 1989 |
| Kousay H. Mahdi Kadduri | 1 | |
| Kraft Thorwald Dillo | 2 | |
| Krajač - Metikoš - Prohaska | 1 | 1975 |
| Krakauer Chorgesellschaft | 1 | 2010 |
| Krakauer Chorgesellschaft, Malgorzata Orawska | 1 | 2010 |
| Krakow Philharmonic Chorus | 1 | 1994 |
| Krakow Philharmonic Chorus, Polish Radio National Symphony Orchestra, Krzysztof Penderecki | 1 | 1994 |
| Kraskovsky | 1 | |
| Kremer | 1 | 1976 |
| Gidon Kremer, Heinz Holliger | 1 | 1992 |
| Kremerata Musica Tango Operita | 1 | 1998 |
| Krešimir Šipuš | 1 | 1975 |
| Krijn Koetsveld | 2 | |
| Kril Kondrascin | 2 | |
| Krista Bennion Feeney | 1 | 1997 |
| Kristen Witmer | 1 | 2018 |
| Kristina Hammarström | 1 | 2010 |
| Kristina Hammarström, Vocal Group Ars Nova, Danish Radio Sinfonietta, Adam Fischer | 1 | 2010 |
| Krisztina Laki | 2 | 1986 - 1991 |
| Krisztina Laki, Wiener Kammerorchester, György Fischer | 1 | 1991 |
| Kronos Quartet | 5 | 1993 - 2008 |
| Kronos Quartet, Wu Man | 1 | 2008 |
| Krunoslav Cigoj | 2 | 1969 - 1970 |
| Kruno Cigoj | 2 | 1969 - 1970 |
| Krystian Zimerman | 5 | 1979 - 1998 |
| Krystian Zimerman, Vienna Philharmonic Orchestra, Leonard Bernstein | 2 | 1984 - 1985 |
| Krystian Zimmerman | 1 | |
| Krystyna Szczepańska | 1 | 1973 |
| Krystyna Szostek-Radkowa | 1 | |
| Krzysztof Jablonski | 1 | 1993 |
| Krzysztof Jakowicz | 1 | |
| Krzysztof Penderecki | 5 | 1967 - 1994 |
| Ksenija Sidorova | 1 | |
| Ku Ebbinge | 1 | 1972 |
| Kubica/van Berkel Duo | 1 | 1998 |
| Kuchl Quartet, Vienna Philharmonic Orchestra, John Eliot Gardiner | 1 | 2002 |
| The Kuijken Quartet | 1 | |
| Kumho Asiana String Quartet | 1 | 1996 |
| Kun Woo Paik | 3 | 1992 - 2006 |
| Kun Woo Paik, Polish National Radio Symphony Orchestra, Antoni Wit | 2 | 1992 |
| Kungl. Hovkapellet | 2 | 1958 |
| Kungliga Filharmonikerna | 1 | 2015 |
| Kungliga Filharmoniska Orkestern | 2 | 1970 - 1981 |
| Kungliga Hovkapellet | 11 | 1929 - 1975 |