THIRI Studio

Helix — AI Arpeggiator

Not a loop — a path. Helix voice-leads across an infinite octave lattice; THIRI keeps every note legal, Helix decides which legal note is musical. Your key is sent only to chords.thiri.ai from your browser. Need a key? Get one at build.thiri.ai/keys. See the prompt that built this.

Loop up to 16 bars. One chord = 1 bar; append :N for a multi-bar chord (e.g. Cmaj7:2 | Am7 | Dm7 | G7). 4 / 16 bars

THIRI · HELIX Harmonic Arpeggiator · MK I

Current Chord

——

bar — · beat —

API Console chords.thiri.ai

// Console initialized. Waiting for actions...

Oscillator

Waveform

1 Unison

0.0¢ Detune

0.00 Sub

Envelope

0.006s Attack

0.05s Decay

0.50 Sustain

0.09s Release

Filter

18000Hz Cutoff

0.1 Res

Arpeggiator

Density

Motion

Voices

30 Smooth

20 Adv

Harmony

Off = monophonic · 3rd = add interval above · Triad = full chord voicing · Block = dense chord block

FX Rack Enabled Sync Div

Delay

0.28 Mix

250ms Time

0.35 Fdbk

0.60 Ping

4000Hz Tone

Reverb

0.50 Size

0.50 Decay

0.40 Damp

0.00 Shimm

Loop Tempo

0% Swing

Seed

Paste a key, edit the progression, hit Load — then Play.

Notes per chord (text view)

THIRI Helix · the engine is deterministic — same seed + parameters reproduce the exact performance. Legality from the THIRI API; the path is computed locally.