Quote: So in answer to your question, you won’t hear many 64 foot pipes being played, (York certainly doesn’t have one) but there are plenty of 32 foot pipes, from which bottom C sounds at just 16 Hz.
Thanks. I'm not expert in this area - but I'm sure I heard that York Minster has a rank of organ pipes which are unusable for safety reasons - maybe 32 foot?
In any case, 16 Hz is enough to defeat most "hi fi" systems!