MIDI Scale Quantize

Snaps incoming MIDI notes to the nearest pitch within a chosen root and scale, keeping performances in key. Out-of-scale notes are shifted to the closest allowed degree, so improvised or randomized input always lands on musical pitches. Use it downstream of randomizers, arpeggiators, or loose playing to enforce a tonal center.

Inputs

MIDI In

• ID: midi
• Kind: midi
• Rate: event
• Coercion: Forbidden
• Description: MIDI message input

Scale

• ID: scaleContext
• Kind: scale
• Rate: event
• Coercion: Forbidden
• Description: Optional connected Scale value that overrides the authored Root and Scale parameters.

Outputs

MIDI Out

• ID: midi
• Kind: midi
• Rate: event
• Coercion: Forbidden
• Description: MIDI message output

Parameters

Root

• ID: root
• Type: enum
• Control: select
• Range or Options: Auto (auto), C (C), C♯ (C#), D (D), D♯ (D#), E (E), F (F), F♯ (F#), G (G), G♯ (G#), A (A), A♯ (A#), B (B)
• Default: C (C)

Scale

• ID: scale
• Type: enum
• Control: select
• Range or Options: Chromatic (chromatic), Major (major), Minor (minor), Pentatonic (pentatonic), Blues (blues), Dorian (dorian), Mixolydian (mixolydian)
• Default: Major (major)

Notes

• Canonical ID: midi.scaleQuantize
• Category: midi
• Runtime Surface: midi
• Runtime Targets: control-main-thread
• JUCE Early Access: Supported
• Early Access Note: Native-supported in the plugin for the current catalog/runtime support contract.