Oscillators
Up to 16 oscillator slots on a modular canvas. Wavetables (saw, square, sine, PWM and more), FM between oscillators, a sub, noise, and key zones so one patch can be a bass below C3 and a pad above it.
A hybrid synth, drum sampler and effects plugin for VST3, AU and standalone — and an AI agent can play every knob on it.
In development. Builds for Windows, macOS and Linux are not out yet.
Clips from Fold, a track whose lead and riff are Arizona patches, rendered through the real plugin. Loudness-matched.
Up to 16 oscillator slots on a modular canvas. Wavetables (saw, square, sine, PWM and more), FM between oscillators, a sub, noise, and key zones so one patch can be a bass below C3 and a pad above it.
Up to 16 voices per oscillator. A JP-8000-style detune curve, centre-versus-side mix, linear, alternate or centre-out spread, per-voice drift, and a mono-bass crossover so the low end stays centred.
State-variable LP/BP/HP/notch, the classic Ladder, and Ladder II: saturating at every stage, run at 2x (4x from C5 up). Plus a tuned Comb and a Formant filter. Cutoff, resonance and drive are smoothed per sample, so a sweep never steps.
A mod matrix with tempo-synced LFOs, MSEGs, a step sequencer, a mod envelope on each filter and on FM depth, four macros, velocity to filter envelope, and glide.
Tape and diode drive with Off/2x/4x oversampling, chorus, phaser, flanger, a three-tap ensemble, OTT-style three-band dynamics, convolution reverb, and a master bus of glue compressor, MIDI-keyed sidechain duck and true-peak limiter.
A 32-pad drum sampler and a melodic instrument sampler with SFZ import, legato, CC1/CC11 dynamics, sustain pedal and automatic sustain loops.
Measured, not claimed: a driven C6 saw through Ladder II folds back −65 dB of inharmonic energy, against −31 dB through the old Ladder. At full resonance it self-oscillates within 0.2 cents of the cutoff.
Every parameter, note, chord, scale, mod routing and preset is reachable over a local link and an MCP server. Macros and timed sweeps run on the audio thread, so an agent's filter sweep is as smooth as your hand on a knob.
The prompt bar inside the plugin takes plain words — "warmer, slower attack, lock to D dorian" — and runs on your own Anthropic API key, stored on your machine only.

44 factory presets, from synth leads and basses to synthesised orchestral instruments. The newest:
Arizona Iced will be pay what you want, including nothing. Downloads for Windows, macOS and Linux are coming soon; there is no store yet, so there is nothing to buy today.