We apply the Displacement Framework to the singing voice. S0_voice is the uninflected natural voice at minimum effort. Vocal technique is strategic displacement toward a trained ground state, with register breaks as attractor boundary crossings analyzed via cusp catastrophe. Passaggio is the narrow inter-basin channel. Belting and classical singing are disjoint trained attractors.
Vocal damage is wrong-attractor capture from excessive displacement; vocal rest is the enforced return window. Falsetto is excursion into a high-frequency attractor basin. Rock/blues riffs are formalized as bounded displacement cycles; the blue note is a controlled attractor-boundary approach. Vocal authenticity is proportional to proximity to S0_voice.
Phronesis