Born in Dortmund, Kläsener studied organ with Gisbert Schneider from 1979 and Catholic church music at the Folkwang-Hochschule from 1981, graduating in 1987.
[2] In October 2017, they performed a program for the Year of the Reformation which combined the last premiere of a work by Thomas Beimel, im anfang war das wort,[3] with Bach's Lutherische Messe in G major and Bruckner's Mass in E minor.
[1] He prepared the Kantorei for performances of Bach's St Matthew Passion in a danced version in 2017, celebrating the 40th anniversary of the relationship between Wuppertal and Beer-Sheva, Israel.
The music was shortened and in different order, to match the retrospect narrative of the choreographer Tamir Ginz of the dance company Kamea.
[8] Kläsener conducted the Kantorei Barmen-Gemarke to July 2017,[9] and took up a new position as the church musician in Solingen's West from 9 September 2017.