Fractalphone

A synthesizer carved from a fractal. The amber line reads one row of the rock as a single cycle of sound.

0×0
99 steps · 16 folds

Touch anywhere — the rock starts playing

Auto-play · stopped

Quartz Run138 bpm · A min

Every voice — lead, bass — is the live stylus row. The stylus glides to a new stratum each bar; twist the literals while it plays.

Waveform · Harmonicsamp 0.000

Core sample · stylus history

Literals

Click the ring to jump · drag or scroll to turn · Shift = fine · double-click = original

Music link50%

Foldvec3(4,·,4)

Stratavec3(·,1.3,·)

Spirevec3(2,8,2.5)

Liftvec2(0,.7)

Orbitt*.5

Mineralhsv(.6

Vein4.3-p.y

Glows/1e4

Strike a slab to wake audio

oct 3

Keys A–K play · Z / X octave · Space freezes the orbit so a tone holds still.

Source

for(float i,g,e,s;++i<99.;){vec3 p=vec3((FC.xy-.5*r)/r.y+vec2(0,.7),g-.4);p.zx*=rotate2D(t*.5);s=1.;for(int i;i++<16;p=vec3(2,8,2.5)-abs(abs(p)*e-vec3(4,1.3,4)))s*=e=max(1.002,8./dot(p,p));g+=mod(length(p.xz),p.y)/s;s=log(s)/g;o.rgb+=hsv(.6,4.3-p.y,s/1e4);}