Assertion: composer's work | /r/HasProperty | music
Facets:
Source sentences:
text: Between summer of 1967 and the end of 1968, Glass composed nine works, including Strung Out (for amplified solo violin, composed in summer of 1967), Gradus (for solo saxophone, 1968), Music in the Shape of a Square (for two flutes, composed in May 1968, an homage to Erik Satie),