(In this context, Boulez had expressed admiration for the third piece of Schoenberg's Three Piano Pieces, Opus 11, as well as for the piano part in the "Die Kreuze" movement of Pierrot lunaire.)
In this context, Boulez expressed appreciation for specific pieces by Schoenberg, particularly his Third Piano Piece, Opus 11, and the piano part within the "Die Kreuze" movement of Pierrot Lunaire.