Adaptation of music of Edvard Grieg
Stammerings [tr.]; Meditación and En secreto; Quartet in Quarter-Tones No. 4 and No. 5
Jobert (rev. version)
Revised as 2 bosquejos [2 Sketches]
Philadelphia Quartet; (later) José Luis Gómez Ugarte
The dedication to José Luis Gómez Ugarte is on a manuscript from 1940; is it a revision?
A Debussy [In the Manner of Debussy]
May be a version of a quartet (1926) dedicated to Arnold Schoenberg of which only the title page exists.
Also known as Atonal Quartet No. 3, with a date of 1926
Also known as Atonal Quartet No. 2 and No. 4
Cuarteto no. 4 en escala diatónica de 6 grados
Cuarteto atonal metamorfoseado
A Beethoven [In the Manner of Beethoven]; Atonal Quartet No. 4