He focuses mainly on solo concerts, his trio Baars Buis Deman, duo Baars-Henneman, the quartet Perch Hen Brock & Rain and the ICP Orchestra. He’s also a member of the Kaja Draksler Octet and trio Kneer Baars Elgart.

In reviews Baars’ music has been characterized as joyfully obstinate, but surely appealing and as colourful as it is astonishing. It embodies the best typically Dutch improvised music has to offer. Although he seldomly uses recognizable song forms or ongoing swing rhythms, the music stays catchy, because it is stripped to the essence and clearly presented.