Psy Free was a trio consisting of guitar, organ and drums. I was the drummer. We did what the name suggests: psychedelic, free music.

I had to realize that the use of samples has its rules, too.

The human voice is the first and most natural musical instrument, also the most emotional.

How did this or that change my music? The only time I have to think about it is when an interviewer asks me that.

Yes, I was invited to make the sound environment at a booth of a huge electronic company, during the Hanover Industrial Fair in 1973. It was a job. Slightly good paid. But not as much as my producer then told the press.

I listened to the rock music of that time, but as you know and can easily hear: my music of that era had nothing to do with the common music of this era. I was experimenting, I was searching for something new.

I went solo because I could do much better what I wanted to do. I didn't have to ask or discuss things and ideas that are already shaped in my head.