During World War II, Alexander Zwaap had to cover his identity by living under an alias. As of 1953, he legally changed his name to Lex van Delden. His life story is impressive considering the traumatic events he experienced in the war years. A past of which he never spoke, and which he knew to overcome with tremendous courage and resilience. Music was for him a “transfer medium between people.” He literally practiced this with his compositions. Van Delden was a great advocate of Dutch music and held several board positions in the Dutch music world.