Albeit a fairly rushed upload, I thought I'd give Sonus Paradisi's small Galician demo organ a test (along with my slightly lacking left-hand dexterity) with this lovely piece by CdA.
Very much inspired by a recording of this played by Francis Chapelet at Capillas, this uses both Trompeta and Dulzaina for the inverted melody, and Flautado + Octava + Docena (8+4+2 2/3) for its accompaniment.
Slight amount of artificial reverb added. I may update this with fewer slips and a more robust tempo, but it's a good insight into this charming little organ.