A taxis is an innate behavioral response by an organism to a directional stimulus or gradient of stimulus intensity. Phototaxis, is then the movement of an organism in response to light.
Delicate structures for soprano saxophone, cello, and vibraphones
Delicate Structures is based on a highly melodic/rhythmic theme and its counterpoint. The theme appears out of nowhere in a modified form and is then being stated in its original form by the soprano saxophone, the cello and the vibraphone. An alternation of repetitive cells brings the piece to a climax before the theme disappears.