Instrument Model is currently locked to MKI. MKII behavior is coming soon and is not available as an order option yet.

If something feels like it moved or got renamed, this is the first section to check. The model choice will change both the control surface and the way the synth circuit is derived underneath when MKII becomes available.

MIDI Input lets a hardware controller drive the simulator live. It is mainly there for testing note behavior, plucks, and playability without needing to point and drag everything by hand.

• `C2` and `D2` act as pluck triggers.
• Melodic notes choose pitch positions on the strips.
• Starting live MIDI automatically kicks demo playback out so the instrument listens to you instead.

Presets are browser-saved snapshots of the current simulator state. That means they can remember the sound, the appearance, and a lot of the build context together.

• Save / Load stores and restores named setups.
• Delete / Reset / Export / Import manages local presets or moves them between browsers as JSON.
• Randomize is a fast way to explore either looks or electronics without rebuilding everything by hand.

This section is the shopping and configuration side of the simulator. It tracks the version of the instrument you are customizing and shows the current build price as options change.

Handedness and Range are order choices, while many visual options such as body finish, burst, hardware, pickups, and knob faces are chosen directly on the instrument itself.

Add Current Build to Cart sends the current finish and electronics state into the storefront cart so the build you were hearing lines up with the build you are ordering.

This area targets the pitch behavior of the twin square wave oscillators. It is less about timbre and more about what note range each strip covers.

• Range sets how many half-steps the strip covers.
• PWM adjusts the duty cycle target at one end of the strip.
• Osc A / Osc B Base Pitch decide where each oscillator starts when the strip is at the high-resistance end.

If notes feel musically wrong before they feel tonally wrong, this is usually the place to look.

Expert Mode opens the deeper circuit-facing controls. This is where the simulator stops feeling like a pedalboard and starts feeling like a lab bench.

The sections inside Expert Mode map to real parts of the behavior chain: envelope timing, oscillator timing components, channel readouts, and the amp simulation layer.

Attack Max sets the top end of the attack resistance range, and Attack picks the current position within that range.

Short attack gives a fast punch. Longer attack softens the front edge and makes the note bloom instead of jumping out immediately.

Release Pot, Base Bleed R, and Base Cap shape how the envelope decays after excitation.

• More base capacitance generally means longer decay.
• Higher bleed resistance makes the envelope bleed down more slowly.
• The Release Pot value is added to the base bleed resistance.

These controls live in the collapsible demo drawer and tune how physical interactions are interpreted in the simulation.

• Signal Freq affects the visual excitation source for actuator motion.
• Min / Max Pluck set the pluck strength range.
• Bow Strength and Bow Note shape sustained bowed behavior.
• Rod Freq Mult / Rod Amp Mult control how the actuator visuals and behavior scale.

The oscillator cards show the component values and live pitch results for each channel. The readout cards underneath give you a more diagnostic view of what the simulator thinks is happening right now.

These are most useful when you are asking questions like “what note is this really producing?” or “did I change the timer behavior or only the envelope?”

Amp Sim adds lightweight space and motion effects after the synth voice is generated. It is there to help audition vibe and presence without pretending to be a full external rig.

• Simple Reverb adds room and tail.
• Delay adds repeats.
• Chorus widens and thickens the sound.
• Auto-Wah reacts to playing intensity and sweeps the filter automatically.

Appearance resets the cosmetic build choices. Electronics resets the circuit side.

Help is this panel. The idea is that it gives you just enough orientation to know where to poke next without burying the simulator under a wall of permanent instructions.