Yeah I wouldn't really call Harmonies du Soir or La Vision "show-off" or "encore" pieces.
Bowen Toccata Op. 155
Prokofiev Toccata Op. 11
Alkan Etude Op. 17 "Le Preux"
Alkan Etudes Op. 39 Nos. 1, 7, 10 and 12
Alkan Etude Op. 33 No. 5
Sciarrino De la Nuit
Sciarrino Etude de Concert
Sciarrino Estudio
Tchaikovsky-Pletnev Adagio from the Ballet Suite "Sleeping Beauty"
Liebermann Gargoyles No. 4
Liszt Transcendental Etudes Nos. 2, 4, 5, 8 and 12
Liszt Etudes Transcendentales de Paganini Nos. 3 and 6
Stravinsky Etude No. 4 Op. 7
Scriabin Poeme "Vers la Flamme" Op. 72
Scriabin Etude Op. 65 No. 3
Rachmaninov Etude Op. 33 No. 8 in C Sharp Minor
Rachmaninov Etudes Op. 39 Nos. 1, 5, 6 and 9
Debussy L'Isle Joyeuse
Debussy Etudes Nos. 7 and 12
Debussy Preludes "Ce Qu'a vu le Vient d'Ouest" and "Feux d'Artifice"
Alkan Chemin de Fer
Stravinsky-Agosti "Danse Infernale" from Firebird
Ornstein Danse Sauvage
Antheil Sonate Sauvage
Antheil Jazz Sonata
Chopin-Godowsky "Winter Wind"
Boulez Sur Incises
De Falla Fantasia Baetica
Albeniz Triana
Chopin Preludes Op. 28 Nos. 12, 16 and 24
Schumann Toccata Op. 7
Ruatavaara Etudes Op. 42 Nos. 1, 3, 5 and 6
Bartok Two Rumanian Danses Op. 8a
Bartok Etudes Op. 18
Vine Sonata No. 1