Glassworks
Glassworks is an album by Philip Glass with 5 pieces, released under CBS/Sony Classical in 1982. It is regarded as being a characteristically Glass-like set of works.
"Opening" uses triplet eighth notes, over duple eighth notes, over whole notes in 4/4. Formally it consists of three groups of four measure phrases of three to four chords repeated four times each, ABC:||ABC, which then merges with the next movement, "Floe" with the entrance of the horns.
Track listing
"Opening"