- References
{{Orphan|date=May 2014}}Gustave Langenus (1883–1957) was a Belgian clarinetist. He is known for his mouthpiece design and 1913 method book, an important early pedagogical device for the Boehm system clarinet. He was principal clarinetist with the New York Symphony.[1]References1. ^{{cite web|url=http://www.clarinetperfection.com/clgallerympc.htm#langenus|accessdate=10 October 2012|publisher=Clarinet Perfection|title=Gustave Langenus}}
{{Belgium-musician-stub}} 3 : 1883 births|1957 deaths|Belgian clarinetists |