[2][3][4] Daneels studied music at the Royal Conservatory of Brussels, earning First Prize with Great Distinction in 1939.
[5] His performed internationally, including in the United States, Germany, Switzerland, Canada, Hungary, former Czechoslovakia, and Denmark.
He is widely known for having founded the Belgian School of Saxophone, which he described as a blend of the French School of Marcel Mule and the American School—a mixture characterized by the quality of sound, rhythmic rigor, observance of nuances, and respect of the text of pieces studied.
When Daneels retired from the Royal Conservatory of Brussels in 1981, one of his former students, Alain Crépin, succeeded him.
[7] Daneels was the founding president of International Adolphe Sax Association in 1994, and served in that role until 2004.