original_query: What were Volker David Kirchner's areas of study at the Peter Cornelius Conservatory and the Hochschule für Musik Köln?
query: What were Volker David Kirchner's areas of study at the Peter Cornelius Conservatory and the Hochschule für Musik Köln?
answer: At the Peter Cornelius Conservatory, he studied violin with Günter Kehr and composition with Günter Raphael. At the Hochschule für Musik Köln, he studied violin and composition, being influenced by composers Bernd Alois Zimmermann, Karlheinz Stockhausen and Pierre Boulez.