the era of romanticism brought such a wonderful device to organ building as the walzer.ain sound. for example. the organization can have both hands and legs occupied, and switch, for example, registers in time, that is, what he... programmed in advance, an assistant helps him, the assistant looks at the notes all the time, because the organist writes exactly those changes in sound, those combinations that he programmed at the rehearsal, so the assistant performs a very important function, he must be able to read notes - turn everything on in time, in fact, this is a wind organ, because these are all the pipes that we see on avenue organ... they are all real, they are all playing, and inside there are three more floors of pipes , on which there are 3,905 of them in total, here there is a key, which is like in an ignition machine, it turns on the engine, now it is on, this engine turns on this is a big fan that moves, the blades are so big that pump air, and it goes under pressure into special tanks, we see some of them on the avenue, these tanks. they are called venladas,