Scaler

Quantize notes to a scale

When to use it

Use Scaler anywhere you need in-key notes — after a random source, before Harmony/Arp, or on live input. Choose a preset scale or build a custom one from individual degrees.

Parameters

Parameter	Range	What it does
Bypass	0 – 1	When on, the device is disabled and MIDI passes through unchanged.
Key	0 – 11	Root pitch class (C–B) for scale quantization.
Quantize	0 – 2	How out-of-scale notes are corrected (down, up, or filtered out).
Scale	0 – 50	Preset scale from the built-in library, or Custom to use degree toggles.
I	0 – 11	Include scale degree 1 when Scale is Custom (pitch class 0–11).
I#	0 – 11	Include scale degree 2 when Scale is Custom (pitch class 0–11).
II	0 – 11	Include scale degree 3 when Scale is Custom (pitch class 0–11).
II#	0 – 11	Include scale degree 4 when Scale is Custom (pitch class 0–11).
III	0 – 11	Include scale degree 5 when Scale is Custom (pitch class 0–11).
IV	0 – 11	Include scale degree 6 when Scale is Custom (pitch class 0–11).
IV#	0 – 11	Include scale degree 7 when Scale is Custom (pitch class 0–11).
V	0 – 11	Include scale degree 8 when Scale is Custom (pitch class 0–11).
V#	0 – 11	Include scale degree 9 when Scale is Custom (pitch class 0–11).
VI	0 – 11	Include scale degree 10 when Scale is Custom (pitch class 0–11).
VI#	0 – 11	Include scale degree 11 when Scale is Custom (pitch class 0–11).
VII	0 – 11	Include scale degree 12 when Scale is Custom (pitch class 0–11).

Parameter values

Bypass

Value	Name	Meaning
0	Off	Device is active and processes MIDI.
1	On	Device is bypassed; messages pass through unchanged.

Key

Value	Name	Meaning
0	C	Root pitch class C.
1	C#	Root pitch class C sharp.
2	D	Root pitch class D.
3	D#	Root pitch class D sharp.
4	E	Root pitch class E.
5	F	Root pitch class F.
6	F#	Root pitch class F sharp.
7	G	Root pitch class G.
8	G#	Root pitch class G sharp.
9	A	Root pitch class A.
10	A#	Root pitch class A sharp.
11	B	Root pitch class B.

Quantize

Value	Name	Meaning
0	Down	Snap to the nearest scale degree below the input pitch.
1	Up	Snap to the nearest scale degree above the input pitch.
2	Filter	Drop notes that are not in the scale.

Available scales

TIP

Preset Scale values 1–50 in the Scaler device. Set Scale to Custom (0) to build your own pool from the Degree toggles instead.

#	Scale	Description
1	Chromatic	All twelve semitones — no quantization.
2	Major	Ionian major — the common major scale.
3	Natural Minor	Natural minor (Aeolian).
4	Pentatonic Major	Major pentatonic — five notes, no semitone clashes.
5	Pentatonic Minor	Minor pentatonic — blues-friendly five-note set.
6	Blues	Blues hexatonic with lowered fifth.
7	Harmonic Minor	Minor with raised seventh (leading tone).
8	Melodic Minor	Ascending melodic minor.
9	Dorian	Dorian mode — minor with raised sixth.
10	Mixolydian	Mixolydian — major with lowered seventh.
11	Lydian	Lydian — major with raised fourth.
12	Phrygian	Phrygian — minor with lowered second.
13	Locrian	Locrian — diminished fifth flavor.
14	Whole Tone	Whole-tone — six equal whole steps.
15	Bebop Dominant	Bebop dominant — passing tone on dominant 7th.
16	Bebop Major	Bebop major — passing tone in major.
17	Bebop Minor	Bebop minor — passing tone in minor.
18	Harmonic Major	Major with harmonic minor raised seventh.
19	Altered	Super Locrian / altered dominant.
20	Half-Whole Diminished	Half–whole diminished.
21	Whole-Half Diminished	Whole–half diminished.
22	Lydian Dominant	Lydian dominant — Mixolydian with #4.
23	Diminished Whole Tone	Diminished whole-tone hybrid.
24	Overtone	Overtone / acoustic scale.
25	Augmented	Augmented — major thirds cycle.
26	Japanese	Japanese insen-style pentatonic.
27	Egyptian	Egyptian pentatonic.
28	Flamenco	Flamenco / Spanish gypsy.
29	2x Harmonic Major	Double harmonic major.
30	Hungarian Minor	Hungarian minor.
31	Persian	Persian — augmented second flavor.
32	Neapolitan Minor	Neapolitan minor.
33	Neapolitan Major	Neapolitan major.
34	Raga Bhairav	Raga Bhairav.
35	Indian	Indian pentatonic variant.
36	Chinese	Chinese pentatonic.
37	Arabian	Arabian — hijaz-like.
38	Balinese	Balinese pelog-derived.
39	Balinese Pelog	Balinese pelog (alternate).
40	Enigmatic	Enigmatic — unusual intervals.
41	Prometheus	Prometheus — mystic chord color.
42	Messiaen's Mode 2	Messiaen mode 2 (octatonic).
43	Messiaen's Mode 3	Messiaen mode 3.
44	Pentatonic Neutral	Neutral pentatonic.
45	Nine-Note Jazz	Nine-note jazz scale.
46	Hexatonic Blues	Hexatonic blues variant.
47	Freygish	Phrygian dominant (Freygish).
48	Byzantine	Byzantine double harmonic.
49	Tarantella	Tarantella — southern Italian flavor.
50	Raga Kafi	Raga Kafi.