The audio track was recorded with hauptwerk system and sample set by Sonus Paradisi, San Carlo Church in Brescia.
The video was recorded on an antique Italian organ built in 1694, it is tone-deaf and has a pedal Board of 20 keys with first short octave, also has only one keyboard with 49 keys, forgive the many errors of execution but I had only twenty minutes to try it out and I had to adapt the sheet music to technical issues of this organ