Wikipedia:
Kurt Dörflinger (* August 5, 1910 in Karlsruhe; † January 6, 1986 in Estorf) was a German composer who also worked as a jazz and light musician. He also published under the pseudonym Collano.
Dörflinger studied at the Munz Conservatory in his native city in the 1920s. In the 1930s and 1940s, he worked as a saxophonist with Willy Berking, in the German Dance and Entertainment Orchestra (under Willi Stech), and with Kurt Widmann, for whom he wrote the piece ''Heisse Tage''. Then he worked in radio orchestras. He composed orchestral works, the comic opera ''Der Erntekranz'', the symphonic work ''Revolution'', but also hits like ''Ganz leis' erklingt Musik'' which Conny Scheffel recorded.
Note: Translated from a German version of Wikipedia into English.