风琴的声音是由吹过不同尺寸的管子的恒定气流产生的。声音是由空气通过一个狭窄的缝隙吹到边缘上而发出的，同录音机原理；或者像单簧管一样，由管子里的振动簧片发出。
The sophisticated wiring and layout of the controller ensures operation is completely silent and the musical enjoyment is not diminished even during the quietest sounds. The Festo solution also enables a dynamic switch between those parts in the music requiring low air consumption and those needing a full blast of air. The required air pressure of 4.5 millibar remains constant, as one of the two bellows always retains enough reserve air.
The restored instrument with the automated bellows lifting unit has successfully been in action at the college premises in Regensburg since the end of July 2014. The organ has been used in lessons for authentically playing Italian music from the 18th century. Modern technology from Festo has helped to keep a piece of historical music culture alive.