7. Piet van Amstel
From 1946 to 1989, for over 43 years, Piet van Amstel was the permanent organist in the Oude Kerk (Old Church). Besides being an organist, Van Amstel also gained fame as a composer. He not only composed works for the organ, he also wrote choral music. His organ concerts, both in the Oude Kerk (Old Church) and abroad, always attracted a lot of attention.