Instrumental, Piano Solos, Apostel (composer)

Ieva Jokubaviciute (piano), Marjorie Dix (mezzo-soprano), Vladimir Valjarevic (piano)

Claire Guimond (flute) & Gary Cooper (conductor & harpsichord) Arion Baroque Orchestra

Ensemble Avantgarde

Steffen Schleiermacher (piano)

Eduard Steuermann (piano), Peter Stadlen (piano), Andor Foldes (piano), David Tudor (piano), Howard Lebow (piano), Erika Haase (piano), Yvonne Loriod (piano), Else Stock-Hug (piano), Pierre Boulez (piano), Aloys Kontarsky (piano), Niccolò Castiglioni (piano), Andor Losonczy (piano), Peter Roggenkamp (piano), Helmut Lachenmann (piano), Claude Helffer (piano), Herbert Henck (piano), Peter Schmalfuss (piano), Edward Lambert (piano), Yvar Mikhashoff (piano), Cecil Lytle (piano), Bernhard Wambach (piano), Siegfried Mauser (piano), Ortwin Stürmer (piano), Anna D’Errico (piano), Ermis Theodorakis (piano), Massimiliano Damerini (piano), Pi-Hsien Chen (piano), Kaya Han (piano), Nicolas Hodges (piano), Rei Nakamura (piano), Reto Staub (piano/speaker), Benjamin Kobler (piano /speaker), Martine Joste (piano), Kristi Becker (piano), David Arden, Marek Mietelski, Davide Mosconi, Carlos Pellegrino, Werner Füsser (piano), Oscar Pizzo (piano), Alessandro Pianu & Suyun Kim (live electronics), Ellen Ugelvik (piano), two assistants (members of asamisimasa)