Second upload of this work - on a different sample set.
This is the Aria only (separated from the Recitative). I've played it this time on the delightful recently released Azzio sample set by Piotr Grabowski.
http://piotrgrabowski.pl/azzio.html
Question - how to you play a trio on a 2-manual organ which has no independent pedal chorus, just a Bourdon 16 or similar plus couplers.
Answer - Couple the pedal to the manual used for the right hand. Then choose a combination for the left hand on the other manual - fairly equal in power but of contrasting tone colour. That way you won't have any left hand notes overlapping with notes coupled to the pedal.
Registration:
RH - POSITIVO: Bordone 8, Flauto Conico 4, Quintadecima 2
PEDALE: Subbasso 16, Positivo to Pedale
LH - GRANDE ORGANO: Flauto Camino 8, Ripieno 3-4 file