Georges Sadeler began his musical career at the age of 8 in the Conservatory of Luxembourg City and concluded his saxophone and chamber music studies in the class of Marco Pütz in the year 2007.

Besides his principal job in the Military Band of Luxembourg, he is a member of different ensembles such as the saxophone quartett Tetraphonie, De Läb, Saxobeat and Tubaman, Luxembourg Jazz Orchestra and the Zilvesterorchestra with Olio Galanti.

He has appeared as a soloist with numerous wind bands and orchestras such as:
- Musique Militaire Grand-Ducale (conductor: André Reichling, Jean-Claude Braun)
- Schwäbisches Jugendblasorchester (conductor: Toni Scholl)
- Sinfonisches Blasorchester St. Wendel (conductor: Bernhard Stopp)
- Fanfare Royale Grand-Ducale Luxembourg-Grund, Fetschenhof, Cents, Pulvermühl (conductor: François Schammo)
- Fanfare Municipale Luxembourg-Bonnevoie (conductor: Claude Weber)
- Harmonie Municipale Esch/Alzette (conductor: Jean Thill)
- Fanfare Keespelt-Meespelt (conductor: Philippe Noesen)
- Harmonie Municipale Hollerich, Luxbg.-Gare, Cessange

His solo repertoire includes:
- Concerto for Alto Saxophone by Pierre-Max Dubois
- Concertino da camera by Jacques Ibert
- Sonata for Alto Saxophone by Paul Creston
- Four Pictures from New York by Roberto Molinelli
- Pequena Czarda by Pedro Iturralde
- El Artiste Saxofonico by Leon Vliex
and many others

Four Pictures from New York

Musique Militaire Grand-Ducale – dir. Jean-Claude Braun
Including Four Pictures from New York – Roberto Molinelli, arr. Jean-Claude Braun

Spotlight – Solo Concertos with Symphonic Band

Musiqe Militaire Grand-Ducale – dir. Toni Scholl
Including Choral varié – Vincent d'Indy

The Eagles of Snowdown

Musique Militaire Grand-Ducale – dir. Jean-Marie Thoss
Including El Artiste Saxofonico – Leon Vliex