This march based on the Gregorian chant Tu es Petrus is registered Tutti without some of the heaviest reeds in the pedals. Differently from most other chorale preludes by Jeanne Demessieux from her Op. 8 it has not too many modal changes. Basically here we will only find D Aeolian (with Bb) and Dorian (with B natural). Hope you will enjoy the sounds of Alessandria sample set by Piotr Grabowski on my Hauptwerk setup.
