"... Simone Keller’s perfect articulation communicated the score's sharp wit,
and the audience could not help but be affected by the joy of her performance..." 
--Der Landbote newspaper

“... Simone Keller produces powerful chords and hammering rhythms, and playfully juxtaposes poetry against the starkness of existence.
 The tone is essentially melancholy. Her playing sparkles brightly with wit, and gravity is superseded by lightness...”  
--Neue Luzerner Zeitung newspaper