This was recorded on the William Hill English Organ Model by Sonus Paradisi, using the Hauptwerk VPO software.
The title of this piece accurately describes the compositional technique used. Scronx gives us little musical fragments which is then echoed on a different registration. Here, I make use of all three manuals by using the Swell as the accompaniment whilst alternating between the Great and Choir for the melodic phrases. The coda (finishing section) calls for both hands on the Great.
Score: http://imslp.simssa.ca/files/imglnks/usimg/9/96/IMSLP319555-PMLP515269-Scronx_Echo_p79.pdf