[1][2][3] While living in Mechelen, Belgium, in 1948, Bruyninckx co-founded a jazz club there while working as a newspaper journalist.
After a serious car accident in 1965 in India, and during a period of convalescence in 1966, Bruyninckx developed a strong interest in jazz discography.
After conferring with discographer Albert McCarthy and major record collectors, Bruyninckx published 50 Years of Recorded Jazz, 1917–1967 — which included blues, gospel, and ragtime covers.
Other long standing discography projects include those of Tom Lord, based in the Vancouver area of British Columbia, Canada (active thirty-three years — since 1992) and Erik Raben of Denmark (active thirty-six years — since 1989), and Jørgen Grunnet Jepsen (de) of Denmark (died 1981).
Bruyninckx announced that he would stop after the 2007 edition, but left it open whether the publication would continue by someone else, namely his sons Lucien and Dominique Truffandier.