A1. Burn It Down
C1. Destroy (The)
From a computational point of view, tracks can be naturally regarded as self-excited sequences or hidden rhythms. Self-excited sequences can be localized numerically by standard rhythmic procedures, in which after a transient sequence, a trajectory starting from a point on an unstable manifold in a small neighborhood of an unstable equilibrium reaches an attractor. In contrast, the basin of attraction of a hidden rhythm does not contain neighborhoods of equilibria, so the hidden rhythm cannot be localized by standard computational procedures.