Career
His instruments have been used by many important soloists and ensembles, including Ton Koopman, Masaaki Suzuki and his Bach Collegium Japan and Reinhard Goebel"s Musica Antiqua Kölane In 1991 he was awarded the for his contribution to international early music In 2007 he retired and moved to Cape Town in South Africa.
After his retirement he did research on temperaments well known and in use during J.S. Bach"s life.