When he waas 19, he joined the music conservatory of Ghent where he was a student of the jazz department a.o. with Marc GODFROID (tb) and took a class in Hafabra conducting with composer/conductor Dirk BROSSÉ. In 98 he obtained a diploma "meester in de muziek".
He had the opportunity to play with Bert JORIS (tp), Serge PLUME (tp), Kris DEFOORT, Dré PALLEMAERTS, John RUOCCO etc...
Lode MERTENS is a member of the BRUSSELS JAZZ ORCHESTRA. Under their conducting, he played among others the music of Maria SCHNEIDER, Kenny WERNER, Toots THIELEMANS, Bert JORIS, Michel HERR, Erwin VANN etc...
He also appears on the albums recorded by the band, Live and The September Sessions.
He was one one of the 11 arrangers on the album "Changing Faces" (released in 2007), of singer David Linx with the Brussels Jazz Orchestra.
Lode MERTENS is also a member of the HIGH VOLTAGE Sextet, a vigourous example of post-bop jazz led by trumpet player Nico SCHEPERS.
In 1996, Lode MERTENS took over the musical direction of the Fanfare (marching band) "Sint-Cecilia Geraardsbergen", raising its level to a Concert Band.