I have uploaded the Symphony by the German composer
Peter Ronnefeld.
He wrote it in 1952, aged 17. You will find a short (German) introduction included.
He was also a gifted conductor. If anyone is interested I have a powerful recording of the Robert Browning Overture by Charles Ives, conducted by Ronnefeld.
I don’t know the reason for his early death. His son Matthias, also a gifted composer and recorded by Dacapo, died even younger from diabetes. Maybe this was the reason for his fathers death, too.
http://www.universaledition.com/Peter-Ronnefeld/composers-and-works/composer/609/biographyThe publisher states that the symphony lasts only 15 minutes, my recording takes about 25 min.
http://www.ricordi.de/ronnefeld-peter.0.html