I've always wondered how Bach sounds on our Italian organs: thanks to Hauptwerk I can take away my curiosity!
The Serassi organ of the parish church in Serina has two keyboards, which in the sample set are extended to 54 notes (and 27 to the pedal): thus the 8' Principale of the Echo organ can accompany the 8' Oboe of the GreatOrgan. I deliberately chose a very slow and heavy tempo for this dense and meditative choral prelude.