György Ligeti · 1961 · Tonal Music
Core Mechanism
Parametric erosion across synchronized registers — systematic reduction of multiple independent structural dimensions (polyphonic density, pitch-class inventory, registral span, dynamic range, sonic mass) along parallel trajectories to produce convergence toward singularity.
Kernel Engagement
Systematically negates the kernel’s organizing logic and makes the negation the argument.
Evidence
The work systematically eliminates all fifth-based harmonic progression and resolution, using micropolyphonic mass texture and parametric erosion to create structure where harmonic motion would normally provide organization. The absence of tonal relationships generates cascading constraints: canonic saturation exists because harmonic progression can't provide structure, sectional discontinuity exists because modulation is unavailable.
Territory
No stable tonal centers, no systematic scale organization, no fifth-based harmonic relationships. The work operates entirely outside the kernel's organizing logic, using pitch-class reduction and micropolyphonic saturation rather than tonal hierarchy.
Constitutive depth
The foundational commitment to eliminate harmonic progression forces structural consequences Ligeti didn't independently choose. Micropolyphonic texture, parametric reduction trajectories, and sectional organization all exist because the fifth's connective tissue is gone and alternative structural mechanisms are required.
Legibility
The systematic refusal of harmonic resolution is the immediate perceptual content. Any listener hears continuous sound masses without cadential articulation or tonal motion - the absence of fifth-based organization is the surface experience, not a hidden structural feature.