Still a student, the International Association of Jazz Educators already awarded him the 'Special Citation for Outstanding Musicianship', and in 1992 he was part of the Belgian delegation at the Maastricht Jazz Mecca. His breakthrough with the pubic came when he and his band were awarded the 'Prix Nicolas Dor' at Jazz à Liège.
His debut CD 'Aquarelle', with flautist Stefan Bracaval, is released in 1996. Trumpet player Bert Joris, bass clarinet player John Ruocco and percussionist Chris Joris also perform on it. Collaboration with the latter yielded the Chris Joris Experience, within which Ernst signs for part of the compositions and arrangements. The group makes a name for itself in Belgium and abroad and plays an intensive concert series in the Benelux, France, Germany and Scandinavia. They record 'Live' at Jazz Middelheim, which is nominated jazz CD of the year
1998 by both the francophone and Dutch-language Belgian radio stations.
The successful mix of ethnic elements and more jazzy influences is well received far beyond our borders. Vranckx' composition 'The Miner's Tale' is recorded by David Lewis and played on his Ethno-Jazz programme 'All the Colours' on CFMU Ontario (Canada). Ernst performs live within various concepts in jazz programmes, among others for the European Radio Union, Radio 3 (Klara), Radio 1 and Musique 3.
One of the above projects with Canadian trumpet player Kenny Wheeler yielded the CD 'A Child's Blessing', a quintet recording with own work (on which Wheeler mainly plays flugelhorn).
The ̀Ernst Vranckx Quintet' sees the light of day, and includes trumpet player Laurent Blondiau, saxophonist Bart Defoort, bass player Stefan Lievestro and drummer Herman Pardon. The band is invited on an extensive concert tour through China and soon after, the CD 'Songs & Dances' is recorded, again with own compositions only. The CD is very well received by both the Belgian and the international press.
These last few years, Ernst Vranckx has mainly been active as a freelance pianist in various formations, among others in a spoken word/jazz project with actress Antje De Boeck.