| Klavierstück IX | work number 4 | 1954 |
| Jorge Zulueta (piano) | mono | |
| also released on | 20 DISCOS SIGLO VEINTE JJ 031-1 | LPs |
LP also includes:
Henze: 6 Absences for Harpsichord (1961)
Hindemith: (5) Tanzstücke ("Dance Pieces") for Piano Op 19 (1920, 1922)
Blacher: Ornamentos ("Ornaments") Op 37 for Piano (1950)