I learned something today: I don't really like the sound of big organs like the one at the Concertgebouw. We attended the free Wednesday lunchtime concert today. The bass notes could rattle the building, but the sound is like mush to me. I prefer more transparent and crisper sound.
The Concertgebouw, a block from our apartment, has hundreds of performances every year, far more than any other venue I have heard of. It is a grand dame of concert halls, built in 1888, with some major renovations since then. Frank Gehry visited the Concertgebouw with an audio designer to study the hall when he was working on the Walt Disney hall in Los Angeles. He called it, along with Boston's symphony hall, a shoebox design. If you are interested in big architectural ideas, you can hear a long interview of Gehry on the Getty Museum podcast.
The hall was full today; I think many Amsterdammers like the classical repertoire.