*150 copies limited edition* The organ dates back to 1790 and was made by Venanzo Fedeli, who came from a prestigious family of organ builders. This particular organ is tuned in the ancient way at 430 Hz. Tuning relies on pure thirds that aim to create dissonances within the instrument itself. Since the organ is an instrument modeled according to the principles of nature, the intonation of the pipes was performed according to an incompletely equal system that reflects the natural intonation base…