[3] In 1982, he became professor of trumpet at the Luxembourg Conservatoire and in 1986 founded the school's Jazz Department, which he heads.
He has recorded numerous albums covering classical, jazz and dance, with groups such as "Atmosphere", "Life's Circle" "Largo", all of which he created himself.
The TV film The Way to Dusty Death provided an opportunity for him to compose his first orchestral movie score.
[6] In 2004, he founded WPR Records, which sets out to promote young musicians and has featured the Luxembourg National Jazz Orchestra.
[4] In 2008, Waltzing was appointed jazz director at the Echternach International Music Festival.