#96. Beauty and Disappearance of an Unstable Orbit, for ob., cl., perc., pno., vla., db. (2017)

TITLE: Beauty and Disappearance of an Unstable OrbitBeauty and Disappearance of an Unstable Orbit_title w border
CAT# (YEAR COMPOSED): 96 (2017)
INSTRUMENTATION: ob., cl., perc., pno., vla., db.
PAGES: 63
DURATION (APPROX): 14’16
NOTE: The title refers to the sudden destruction of a torus (two independent frequency contours) that occurs when a neighboring unstable periodic orbit, possibly preceded by a transition into a weakly chaotic attractor, collides with that torus.

Musically, this is represented by fast moving tori that break up and disappear, while slower and timbrally diverse regions reference aria and recitative.

[Influenced by the paper: Franceschini, V., Tebaldi, C: Breaking and Disappearance of Tori. Commun. Math. Phys. 94, 317-329 (1984)]

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