| - Kaada
- Kali Malone
- Karel Ancerl, Czech Philharmonic Orchestra
- Karin Bloemen
- Karl Bohm, Wiener Philharmoniker
- Karl Jenkins
- Karl Loxley
- Karl Richter
- Kate Ceberano
- Kate Lindsey, Arcangelo, Jonathan Cohen
- Kate Simko & London Electronic Orchestra
- Katharine Dain & Sam Armstrong
- Katherine Jenkins
- Kathleen Battle
- Kathleen Battle & Wynton Marsalis
- Kati Debretzeni, English Baroque Soloists, John Eliot Gardiner
- Katia & Marielle Labeque
- Kayo Dot
- Keaton Henson
| - Keigo Hoashi & Keiichi Okabe
- Keith Jarrett
- Keith Jarrett, Charlie Haden, Paul Motian
- Keleketla!
- Kelly Moran
- Kendra Springer
- Kennedy & Jaz Coleman
- Khatia Buniatishvili
- Kian Soltani
- Kian Soltani & Aaron Pilsan
- Kid Koala & Trixie Whitley
- Kimmo Pohjonen
- Kinderen voor Kinderen
- King Crimson
- King's College Choir
- Kirill Petrenko
- Klaus Badelt
- Klaus Doldinger
- Klaus Makela
| - Klaus Nomi
- Klaus Schulze
- Klaus Schulze & Lisa Gerrard
- Klaus Wiese
- Koen van Stade & Neal Peres Da Costa
- Kolinda
- Koyaanisqatsy
- Kris Bowers
- Kristin Chenoweth
- Kronos Quartet
- Kronos Quartet, Kimmo Pohjonen & Samuli Kosminen
- Krystian Zimerman
- Krystian Zimerman, Wiener Philharmoniker, Leonard Bernstein
- Kurt Cobain
- Kurt Sanderling, Peter Schreier, Birgit Finnila & Berlin Symphony Orchestra
- Kurt Weill
- Kyohei Sorita
- The King's Singers
- The KLF
- The Knife in collaboration with Mt. Sims and Planningtorock
- The Kyteman Orchestra
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