sentences:  He is lecturer for the recorder at the Staatliche Hochschule Münster and at the Musikakademie Kassel.In addition to compositions published under his own name, he has written numerous pieces in the style of the early 18th century under the pseudonym Giovanni Paolo Simonetti.In 1993 he succeeded in convincing noted Haydn scholar H. C. Robbins Landon and the pianist/scholars Paul and Eva Badura-Skoda that six piano sonatas he had composed were long-lost works by Joseph Haydn (; ).