Wolfgang Amadeus Mozart, Adagio from Clarinet Concerto, KV 622,
Sonarte organ with Hauptwerk, 2007, Tomaš Močnik, church of our Lady in
Adergas , Velesovo (extension), Slovenia
See another variant on Friesach Hauptwerk organ: https://youtu.be/kxf_fSwU68M
Organist: Herman Pals