Musik in vier Sätzen für Flöte = for flute : (1977) - Rubbert, Rainer 1957- (Edition Gravis, 2017)
Four untitled movements for unaccompanied flute. Dedicated to Ulrich Zeller. - The music is free and unmetered, and employs a variety of extended techniques
Additional page 12 to avoid turning laid in. - With performance notes in German