Until I was 41 years old, I worked as a composer, pianist, piano teacher and music producer.
During this period I created many compositions, music productions and draft.
Since I was 42 years old , I have been working in state schools as a teacher for music and work, economics and technology.
Since the year 2013, I have been publishing the aforementioned products that I created in the first half of my life on the internet and in music libraries.
1983 - 1985 Instrumental pedagogy at the Royal Schools of Music, London: Bachelor's degree in piano and theory
1985 - 1987 Instrumental pedagogy course at the Leinster School of Music, Dublin: Diploma as a piano teacher
1992 - 2001 Teacher Training Program at the University of Bremen Music and Economics / Work / Technology - 1.
State examination for music and economics / work / technology
2001 - 2003 Legal traineeship at the State Institute for School, Bremen - 2nd State Examination for Music and Economics / Work / Technology
since 1987 teaching at music schools and freelance work as composer, arranger, producer and pianist, current project: KARL FRERS ART OF CHANGE
2003 -2014 teacher at state schools in Bremen
since 2014 teacher at state schools in Lower Saxony
since 2015 Teacher in the Lower Saxon school service and lecturer at the Institute for Music and Musicology at the University of Hildesheim
Head of brass and mixed ensembles
Digital music production
Department heads in the subjects Music and ATW
Member of the Bremer Lehrer-Bigband
Participation in specialized pedagogical training
Radio Bremen Piano and ensemble music in the programs: "Early Music" and "At Home in a Foreign Country"
Deutschlandfunk Ensemble music in the context of "26th Concert New Music" in Delmenhorst
Open Channel, Bremen Composer portrait in the program "Quod Libet" of the Bremen Music School
Concerts public performance of original compositions
Print Media Publication of music in music libraries in Germany and other European countries