Hohle Fels (2010)
Breath, the typical means of sound production in wind instruments, is completely absent in Hohle Fels. The performers create all of the sounds in the piece by striking the holes and keys of their instruments with their fingers. A tablature-based notation was required since many of the fingerings used in the piece have no function in traditional pitch-based music. The title refers to the location of the discovery of a 35,000-year-old bird-bone flute, the world's oldest known musical instrument.
