He attended the Colleges of Music there and in Strasbourg, where he pursued his studies in musicology at the University of Humanistic Sciences. He has taken part in a large number of concerts, radio broadcasts, seminars and courses on his own music and on that of many contemporary composers and has been on the jury in international competitions for musical composition.Several of his works have been published by Editions Lemoine (Paris) and complete concerts have been devoted to performances of his works in Brussels, Rome, Strasbourg and Tokyo.
Mr.Lenners has worked closely with groups specializing in the performance of contemporary music. These include Accroche-Note (Strasbourg), Alter Ego (Rome), Trio à cordes de Paris, Asko Ensemble (Amsterdam), Qui pro quo (Strasbourg), Luxembourg Percussion, Ensemble 13 (Karlsruhe), The Cambridge New Music Players (London), Ensemble Court-Circuit (Paris), Quatuor Quadro (Bruxelles), Ex-Novo Ensemble (Venice), Ensemble Recherche (Freiburg), Ensemble d’Ame (Tokyo), United Instruments of Lucilin (Luxembourg) and the Ensemble Intercontemporain. Mr.Lenners has composed works for the philharmonic orchestras of Luxembourg and Sarrebruck and for the Ensemble Les Musiciens (Luxembourg) and is the recipient of a number of awards. These include stays at Villa Medici Académie de France (Rome) in 1989-1991,) the Henri Dutilleux Competition (1990), the Stipendienpreis Der Internationalen Ferienkurse Für Neue Musik Darmstadt in 1992, 1st International Irino Prize For Chamber Music (Tokyo) 1993, Prix Lions District Luxembourg 1997. Mr.Lenners is also founder of Pyramide asbl for computer music (Luxembourg 1999) and is artistic director of the Festival de Musique Contemporaine “Rainy Days” (Luxembourg).
Claude Lenners currently lectures in composition, analysis, acoustics and musical informatics at the Luxembourg College Of Music.