Preparation is half the fun of the event itself
Program of the preselection
All participants should prepare a program for the preselection containing these elements:

01:17 A toccata by Girolamo Frescobaldi
See: for Toccata Oxford History of Western Music:
or
04:37 Johann Jakob Froberger, to be chosen by the participant (no organ toccata)
and
09:07 Troisième prélude from « L’Art de toucher le clavecin » by François Couperin
See for other interpretations:

and
10:04 A sinfonia by Johann Sebastian Bach, to be chosen by the participant from BWV 787 – 801
and
Two sonatas by Domenico Scarlatti, to be chosen by the participant:
13:15 K206
K206
and
19:13 K207
or
22:25 K217
and
31:05 K218 (p.e.: edit. Le Pupitre, vol. 35)