Duo Plus
The Duo frequently collaborates with other instrumentalists, including percussionists in works by Berio, Bartòk, Reich, Ginastera, and Balz Trümpy (Fantasia for two pianos and two percussion written for the Duo in 2017). Other pieces with additional players include:
Louis Andriessen: The Hague Hacking (two pianos and orchestra)
Morton Feldman: Four Pianos/Five Pianos/Two Pieces for Three Pianos/Extensions 3 (three pianos)
Erik Oña: Andere Stimmen (3 pianists at one piano)/Lokaler Widerstand (piano duet and string ensemble)
Caspar Johannes Walter: split tones 2 (bass clarinet and two prepared pianos)
Bernd Alois Zimmermann: Dialoge (two pianos and orchestra)