Menno Kalmann is composer, pianist and novelist. He is also a well know inventor - mainly in the field of medical instruments.
Co de Kloet & Menno Kalmann have been active as a duo for more than three decades. As composers, performers and producers they have covered nearly all style sof music. They toured throughout Europe but since years they work in the secrecy and quietness of their own studio and other locations (namely churches).