John Damsma studied at the North Netherlands Conservatory. He graduated as a cellist and received his master degree in orchestral conducting. He worked as conductor of the choir and symphony orchestra of the University of Groningen and the Frisian Chamber Orchestra. Also he taught choral conducting. He was founder and artistic director of the Netherlands renowned vocal group 'Tight Bars' and women's choir 'Mrs. Johnson'. Actually he is working as conductor, choir-coach and arranger of close harmony and vocal jazz. John Damsma is the national jury chairman of the Netherlands Choir Festival. He is also regularly invited as a jury member at national and international music festivals.