Dutch composer Louis Andriessen is often considered Europe's rambunctious, iconoclastic answer to American minimalists like Steve Reich and Philip Glass. He regularly uses jazz and rock textures as well as a sharp political edge in his music. The 1994 “Zilver” ("Silver") for a small group of winds and percussion, takes a pop song melody whose origins the composer won't reveal (due to copyright issues) and extends it over a series of chorale variations. The piece builds in intensity, with staccato percussion chords punching out the tune over a softer string bed. Also worth checking out is “Workers'Union,” a 1975 agit-prop piece scored for "any loud sounding group of instruments" that hammer out rhythms using pitches of their own choice.