Some comments of colleague musicians when Wolter won the VPRO Boy Edgar price:

Michael Moore: "Wolter is a very fluid improvisor with a huge vocabulary. He is also a master of interpretation. Many people have ideas and write them down. Sometimes only Wolter can make them sound musical. Last but not least, he has a great sound."

Gerry Hamingway: "Ï have the good fortune of working with what I feel are some of the most gifted trombone players of our time, the ones who have repositioned the boundaries of a very unforgiving instrument. There are three among these who stand out and with whom I have had the good fortune to have spent many years of music making with: Ray Anderson, George Lewis and Wolter Wierbos. Wolter, who we honor tonight, has developed a profound relationship to music's purest essence: sound.