Ernie Hammes studied classical music in Luxembourg as well as in France before he joined the Luxembourg Army Concert Band in 1987 to become their principal trumpet.
In 1991 he started his jazz studies with Ack Van Rooyen at the Conservatory of The Hague (NL). In 1997, he went to New York City to study at the Manhattan School of Music with Lew Soloff.
Ernie recorded 7 CD under his own name including his last release Evolution which features his own 5-tet with guests Philip Catherine on guitar and Wayne Escoffery on tenor-sax. Also for this CD, he wrote arrangments for a 10-piece string section.