He calls himself the highest-placed city employee of the city of Amsterdam. In ranks, he is not higher than the mayor but physicially speaking, he is quite often higher! Boudewijn Zwart plays the different carillons that are in placed in all the towers in the city of Amsterdam. His songs can be heard while you walk, bike or drive through the city.

A carillon is a musical instrument that is typically housed in the bell tower of a church or other municipal building. The instrument consists of at least 23 cast bronze, cup-shaped bells, which are played serially to play a melody, or sounded together to play a chord. These century-old towers are owned by the city of Amsterdam and are still in use today.

Boudewijn, the official carillon player in the city of Amsterdam, was born into the Zwart family of famous organ players. It can therefore be considered a matter of fate that Boudewijn would end up with a musical career. Today he holds one of the most unique professions in the city of Amsterdam, and Boudewijn carries that distinction with great honor.