Spectral Multiband Resonator

Multiband resonator and filter bank by 4MS Company

Scale Banks

Press the ROTATE knob while turning to change the Bank. The colors of the Env Out lights will change to show what Group you are in (blue, pink, green, orange, or white). One of the six Env Out lights will flash to indicate which Bank in the group is selected (1-6).

Blue Group Equal Temperament

  1. Major scale/chords

    Key of C-Major

    1. Major Chords
    2. Major 6th chords
    3. Major 7th chords
    4. Aug chords
    5. Aug 7th chords
    6. Dom 7th chords
    7. Pentatonic Low
    8. Pentatonic High
    9. Major Scale C1
    10. Major Scale B3
    11. Major Scale A6
  2. Minor scale/chords

    Key of C-Major

    1. Minor Chords
    2. Minor 6th chords
    3. Minor 7th chords
    4. Half Dim7 chords
    5. Minor Pent C1
    6. Minor Pent C5
    7. Blues C1
    8. Blues F4
    9. Harm Min C1
    10. Harm Min B3
    11. Harm Min A6
  3. Western Intervals

    Key of A

    1. Octaves + m2
    2. Octaves + M2
    3. Octaves + m3
    4. Octaves + M3
    5. Octaves + P4
    6. Octaves + d5
    7. Octaves + P5
    8. Octaves + m6
    9. Octaves + M6
    10. Octaves + m7
    11. Octaves + M7
  4. Western Triads

    Key of G

    1. Major 2 + minor 2
    2. Major 3 + dim 5
    3. minor 3 + 5ths
    4. Major 3 + 5ths
    5. 4ths + 5ths
    6. Major 3 + Major 6
    7. minor 3 + minor 6
    8. minor 3 + Major 6
    9. minor 3 + minor 7
    10. 5ths + minor 7
    11. 5ths + Major 7
  5. Chromatic Scale

    Half Steps

    1. E2 - C4
    2. A2 - F4
    3. E3 - C5
    4. A3 - F5
    5. E4 - C6
    6. A4 - F6
    7. E5 - C7
    8. A5 - F7
    9. E6 - C8
    10. A6 - F8
    11. E7 - C9
  6. Whole Step Scales

    Equal Temperament

    1. A2 - B5
    2. A5 - B8
    3. B2 - C5
    4. B5 - C8
    5. C2 - D5
    6. C5 - D8
    7. D2 - E5
    8. D5 - E8
    9. E2 - F5
    10. E5 - F8
    11. F4 - G7

Pink Group Just Intonation

  1. Single Intervals

    Key of A Just Int.

    1. Octaves + m2
    2. Octaves + M2
    3. Octaves + m3
    4. Octaves + M3
    5. Octaves + P4
    6. Octaves + d5
    7. Octaves + P5
    8. Octaves + m6
    9. Octaves + M6
    10. Octaves + m7
    11. Octaves + M7
  2. Western Triads

    Key of G Just Int.

    1. Major 2 + minor 2
    2. Major 3 + dim. 5
    3. minor 3 + 5ths
    4. Major 3+5ths
    5. 4ths + 5ths
    6. Major 3 + Major 6
    7. minor 3 + minor 6
    8. minor 3 + Major 6
    9. minor 3 + minor 7
    10. 5ths + minor 7
    11. 5ths + Major 7
  3. WholeStep Scales

    Just Intonation

    1. E2 - C4
    2. A2 - F4
    3. E3 - C5
    4. A3 - F5
    5. E4 - C6
    6. A4 - F6
    7. E5 - C7
    8. A5 - F7
    9. E6 - C8
    10. A6 - F8
    11. E7 - C9

Orange Group Non-Western Tunings

  1. Indian Pentatonic

    1. E0 to ~C3
    2. E1 to ~C4
    3. E2 to ~C5
    4. E3 to ~C6
    5. E4 to ~C7
    6. E5 to ~C8
    7. E6 to ~C9
    8. Spread 1, 120Hz
    9. Spread 2, 120Hz
    10. Spread 1, 20Hz
    11. Spread 2, 20Hz
  2. Indian Shrutis

    22 note octave

    1. 16.35 – 31.04Hz
    2. 32.7 – 62.1Hz
    3. 65.4 – 124Hz
    4. 131 - 248Hz
    5. 262 - 497Hz
    6. 523 - 993Hz
    7. 1046 - 1987Hz
    8. 2093 - 3973Hz
    9. 4186 - 7947Hz
    10. 8.3k – 15.9k
    11. 16.7k - 20k
  3. Mesopotamian

    1. ISHARTUM A1
    2. ISHARTUM A4
    3. EMBULUM A1
    4. EMBULUM A4
    5. NIDMURUB A1
    6. NIDMURUB A4
    7. QUABLITUM A1
    8. QUABLITUM A4
    9. KITMUN A1
    10. KITMUN A4
    11. MITUM A1
  4. Gamelan Pelog

    1. Java (5 notes) low
    2. Bali (7 notes) low
    3. Pelog, var1, low
    4. Pelog, var2, low
    5. Pelog, var3, low
    6. Java (5 note) mid
    7. Bali (7 note) mid
    8. Bali (7 note) high
    9. Pelog, var1, high
    10. Pelog, var2, hi
    11. Pelog, var3, hi

Green Group Modern Tunings Tunings

  1. Wendy Carlos's Alpha Scale

    Selected notes

  2. Wendy Carlos's Alpha Scale

    More elected notes

  3. Wendy Carlos's Gamma Scale

    Selected notes

  4. 17 notes/octave

    Scales are arranged consecutively from 13.75hz to 20 kHz

  5. Bohlen-Pierce Tritave

    Every 13 notes the frequency triples. Consectutive scales

  6. “296” EQ Frequencies

    Each scale is shifted up 50 cents from previous

White Group Custom Scales

  1. Custom Scales

    User Programmable