Klaas Bolt
Artist with the following albums: "Live concert Maartenskerk Zaltbommel", "Improvisation on 5 historical Dutch organs", "Klaas Bolt improviseert op vijf historische Nederlandse orgels", etc...

Klaas de Vries
Artist with the following albums: "Donemus Highlights CV 34", ""

Klaas J. Mulder
Artist with "KAJEM Vol.1 1987" album

Klaas Jan Mulder
Artist with the following albums: "Grote kerk Hasselt - Dordrecht", "077-Live vanuit de Laurens", "St. Ouen Rouen", etc...

Klaas Jan Mulder (ELK, Den Haag)
Artist with "Meesterlijke improvisaties" album

Klaas Jan Mulder - Han Kapaan en Anke Anderson
Artist with "Gouden kerstklanken" album

Klaas Jan Mulder - Henk de Graaf
Artist with "Gradagio" album

Klaas Jan Mulder en Matthijs Koene
Artist with "Sonata - Mattijs Koene en Klaas Jan Mulder Panfluit en orgel" album

Klaas Spekken
Artist with "Wat ik zeggen wil" album

Klaas Trapman
Artist with the following albums: "Sergei Bortkiewicz --- Piano Works", "Sergei Bortkiewicz Pianoworks 1", "Sergei Bortkiewicz - Pianowork 2-2"

Klaas Vaak
Artist with the following albums: "Welterusten Kleintje", "Hersenloze Confrontatie"

Artist with "Steinway - Piano solo" album

Klaaswaals symfonisch Blaasorkest
Artist with "Het Klaaswaals Symfonisch Blaasorkest/Wim Steinmann" album