With the orchestra, he was a soloist in a recording of Don Quichote by Richard Strauss in 1933, conducted by the composer and with Enrico Mainardi as the cellist.
Other musicians in this quartet were Fritz Rothschild (1913), Gösta Andreasson (1921–45), Ernest Drucker (1946) and Bruno Straumann (1946–52) on 2nd violin.
Schmidt-Laipa, later Fritz Wehmeyer (2nd violin) and cellist Hans Chemin-Petit followed by Paul Blumenfeld as well as Dechert.
After Reitz died, the Bruinier Quartet disbanded in 1944, also due to the war.
[6] Karl Reitz met the painter Albert Aereboe whom he commissioned around 1917 to design the living room at 59a Holtenauer Strasse in Kiel (Brunswick) with murals and integrated paintings, watercolours and drawings to create an interior.
This work has not survived, nor has the villa at Kranzallee 55 in Berlin-Westend, which Hans Walter Reitz later designed for his brother, but which was destroyed during one of the bombings of Berlin.
His second wife was Hildegard Reitz, née Ehlers (1896–1989); the couple had four children.