... in fact, it’s the biggest of the wind family! It can have thousands of pipes, ranging from ten metres to just a few centimetres in length.
Each of these pipes can do one thing: play a particular note at a particular volume (or “dynamic”). When the organist depresses a key on the keyboard, it makes the note sound; the keys are basically just on/off switches. While on a piano it is so important, how you touch a key, on an organ, it doesn’t make any difference.
So it’s not surprising that organists would really like to have a direct influence on their sound, just like flautists or violinists. The Bernese organist and composer Daniel Glaus and his team have found a solution: in their “wind dynamic organ”, the further down you press the key, the more air flows into the pipe, making it louder and sometimes also higher.