Daniel Janin, born on August 12, 1931, in Paris, France, was a French self-taught composer and musician. He discovered jazz during World War II through radio broadcasts. In 1957, Jean Nohain hired him for his first professional contract as a vibraphonist. His career took off when Bruno Coquatrix engaged him in September 1961 to accompany Johnny Hallyday at L'Olympia for three weeks, which extended into a three-year stint. During this period, he worked with notable artists including Jacques Brel and Gilbert Bécaud. In 1964, Janin played in the first part of The Beatles' show at L'Olympia. He later became an arranger for the Grand Orchestre de la Radio-Télévision Suisse Romande. From 1975 onward, he served as a musical director and arranger for the Cirque Knie in Switzerland and collaborated with the Bouglione family and Alexis Grüss. Janin passed away on May 10, 2010, in Lège-Cap-Ferret, France.