Scale and Tuning

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Overview

Use the scale and tuning controls to ensure Evoke only plays notes relevant to your input material. We recommend that you set these whenever loading a new instance to improve detection and enable scale-aware processing (e.g., diatonic harmonization).

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1. Keyboard

Evoke’s Keyboard lets you enable or disable specific notes in your scale. Click any key to toggle it.

It also provides visual feedback: the currently playing note, the currently detected note, and which notes are included in the scale.

The currently detected note appears as a white highlight at the top edge of its key. Use this to decide which notes to include or exclude from the scale. The longer a pitch is detected, the longer the highlight persists before fading out.

2. Scale Controls

Scale Root. Choose the root note for the selected scale. Changing the root will transposes all scale notes accordingly.

Scale Type. Select a preset scale for pitch tracking and harmonization. You can further customize it by toggling individual keys on the Keyboard.

Even if you customize Chromatic to match a specific scale, harmonization remains chromatic. Scale-aware (diatonic) processing is enabled only when you select a non-chromatic option in the Scale Type dropdown.

3. Reference Frequency

By default, Evoke uses the standard concert pitch A4 = 440 Hz. Change the Reference Pitch to match sources tuned differently (e.g., A4 = 432 Hz) when required.

4. Preset Locking

When Preset Locking is on, all Keyboard Panel settings, including Input and Pitch Range, are preserved when you change presets.

This is the default behavior in Evoke because these settings are tied to the input signal rather than the preset. Turn Lock off to load the Keyboard Panel settings saved with the selected preset.

Settings affected by Preset Locking:

• Scale Root

• Scale Type

• Reference Pitch

• Keyboard Notes

• Input Gain

• Input Gate