The piece makes use of extended techniques (for the flute), concretely frullato (flutter tongue), tongued pizzicato and "Pauken-Effekt" (tongue ram). The cello, besides the usual techniques (ranging from sul tasto to sul ponticello, flautato and col legno), uses "tap": "martellato mano sinistra" (martellato left hand: tapping the strings with the fingertips of the left hand.
