I have played this piece on Fagott 16' and Principal 8' (left hand) and Vox humana 8' and Principal 4' (right hand) stops using Velesovo sample set by Sonus Paradisi of Hauptwerk VPO. If you like my music making, you can support me on Patreon and get free organ CD's at https://patreon.com/secretsoforganplaying