Detuning
After quantization, the
Detune
feature is applied. The first (root) oscillator is not detuned at all. The other odd-numbered
oscillators are detuned upwards, and the even-numbered oscillators are detuned downwards. Going from lowest to highest,
each oscillator is detuned a little more than the previous one. If an oscillator is outputting two pitches because its pre-
quantized frequency is between two notes in the scale, both pitches will be detuned by the same amount and in the same
direction, regardless of whether they are odd or even-numbered.
Scale Groups
There are thirty scales in the
Ensemble Oscillator
, arranged into three groups of ten each. The group is selected using the
Scale
switch, and the scale within the group is selected using the
Scale
knob. The three groups are
12TET
,
Octave
, and
Free
. Each group has different properties.
12TET scale group
In the
12TET
group, all the intervals are equal-temperament semitones and multiples of semitones (whole-steps, minor
thirds, octaves, etc.) Only notes from a 12-tone equal temperament scale will appear, but scales don’t necessarily have to
repeat every octave.
Octave scale group
The
Octave
scale group allows any interval but forces each scale to repeat every N octaves. Just intonation and other
octave-repeating temperaments can easily be entered here, as well as scales that repeat every 2 or 3 octaves. If you create
your own scale in the
Octave
group and the highest note you enter is not exactly a whole number of octaves above the
lowest note, then the module will automatically insert an extra interval at the end to “complete" the octave. This means that
whenever the sequence of intervals repeats with a scale in the
Octave
group, the pitches will always be one or more
octaves higher.
12TET group factory scales
Intervals
Example Notes (assume root note is C0)
Slot 1
Octaves
P8, repeat
C0, C1, C2, …
Slot 2
Octaves and fifths
P5, M3, repeat
C0, G0, C1, G1, C2, …
Slot 3
Major triad
M3, m3, P4, repeat
C0, E0, G0, C1, …
Slot 4
Minor triad
m3, M3, P4, repeat
C0, Eb0, G0, C1, …
Slot 5
Minor triad+
m3, M2, M2, P4, repeat
C0, Eb0, F0, G0, C1, …
Slot 6
“Bluesy 1”
m3, M2, P4, M2, repeat
C0, Eb0, F0, A#0, C1, …
Slot 7
Major 7th 3rd inv.
m2, M3, m3, M3, repeat
C0, C#0, F0, G#0, C1, …
Slot 8
Circle of Fifths
P5, repeat
C0, G0, D1, A1, E2, …
Slot 9
“Bluesy 2”
m3, M2, M2, repeat
C0, Eb0, F0, G0, A#0, C#1, D#1, …
Slot 10
Semitones
m2, repeat
C0, C#0, D0, D#0, E0, F0, …
Octave group factory scales
Comments
Slot 1
Harmonics 2-3 of the harmonic series
aka. perfect fifths
Slot 2
Harmonics 4-7 of the harmonic series
Slot 3
Harmonics 8-15 of the harmonic series
Slot 4
Odd Harmonics 1-8 of the harmonic series
Slot 5
Do Fa So (Pythagorean), just intonation
ratios 1:1, 4:3, 3:2, 2:1
Slot 6
Do Re Fa So La (Pythagorean), just intonation
ratios 1:1, 9:8, 4:3, 3:2, 27:16, 2:1
Slot 7
First just ratio scale
ratios 1:1, 3:2, 4:3, 5:4, 2:1
Slot 8
Second just ratio scale
ratios 1:1, 5:4, 4:3, 3:2, 5:3, 7:4, 2:1
Slot 9
5TET
five notes per octave, equal temperament
Slot 10
7TET
seven notes per octave, equal temperament
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