Code コード

A purpose-built composition program with a section-based arrangement view. Hard constraints prune pitch domains by propagation, soft constraints rank the remaining candidates, and backtracking search commits to solutions. Harmony is classified by the discrete Fourier transform of pitch-class sets.

A pitch and harmony library for OpenMusic and OM-Screamer: constraint boxes for modal fields, colour and talea cells, implied inner voices, pitch centres, voice-leading, DFT-based harmonic analysis, and harmonic tension shaped section by section.

A rhythm library built on weighted cell trajectories. Rhythmic cells receive start and end weights that interpolate across a piece and are converted automatically into strict and heuristic rules.

Spectral analysis and classification of pitch-class sets with the discrete Fourier transform. It computes the DFT of binary pitch-class vectors over ℤ₁₂ and uses the complex product of selected coefficients as the main spectral invariant.

Each set is analysed for inversional symmetry, intervallic structure and spectral energy distribution, then mapped to harmonic archetypes and to heuristic categories inspired by Takemitsu.

Coupled phase oscillators rendered as sound and image. Natural frequencies come from uniform, Gaussian or log-normal distributions; coupling can be global, local or random, and its strength is modulated over time.

Phases drive waveform generators with gating, envelopes and stereo spatialisation. A browser version runs on the home page.

A recreation of the simulation in Kiyoshi Kurosawa’s Pulse (回路, 2001). Points drift through a three-dimensional void, leaving fading trails. The further apart they are, the more they attract; when two come too close, one disappears. There is no collision, only absence. The space does not collapse. It empties.

The behaviour mirrors Schopenhauer’s hedgehog’s dilemma: closeness sought, and punished.