The research we put to save the original tuning and temperament represents a great investment for our company; our reconstruction is based on the existing marks  on top of the front pipes in relation to the less compromised internal ones. The temperament is reinstated scientifically considering the executive-liturgical practice of the specific geographical area, as well as the time of construction of the organ. The temperament  is indeed determined by practical criteria of the music, which was to be played.