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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Overview
Type Rhythm Generator
Size 8HP Eurorack
Depth .8 Inches
Power 2x5 Eurorack
+12 mA 50
-12 mA 5
Zularic Repetitor is a rhythmic gate generator based on African music theory. A
core pattern forms the basis and variation is achieved by offsetting this pattern in
time relative to the base.
is module contains 30 mother rhythms from African, Indian, Latin, Funk and
Rock roots. Each pattern outputs four parts and allows the offset of three parts
relative to the mother. e offset is CV and knob controllable. It requires only a
beat clock to run.
Also included are two special modes. One turns Zularic Repetitor into a 3
section CV/knob controllable divider. e other generates random gates where
the probability is determined by the knob/CV.
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
1
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Patching Suggestions
e simplest way to get to know Zularic Repetitor is to simply patch a master
clock into BEAT and connect each of the four outputs to the gate of four
different percussion modules. You can get an idea of the patterns included by
adjusting the MOTHER knob and a feel for how the time offset works by playing
with the CHILD knobs.
e next step is to patch a CV. A CV sequencer or just a simple gate input are
both useful for controlling either the MOTHER pattern or the CHILD offset.
ese can be used to generate a wide variety of related rhythms and dynamic
variations. A simple CV example is to take the beat clock being sent to Zularic
Repetitor and divide it by 64. Send this divided beat in to one of the CHILD
inputs. Adjust the related CHILD knob to control the amount of time offset that
occurs to the CHILD every 64 beats.
Many more complicated schemes are possible to dynamically vary the rhythms.
Any slow control voltage or gate might produce an interesting variation!
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
3
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Design Notes
e Zularic Repetitor was conceived of when I was reading “Rhythm and
Transforms” by William Sethares. is book provided the initial rhythms for the
very rst prototype of Zularic Repetitor. It was developed on a Texas
Instruments MSP430 microcontroller. e rst prototype was compelling from
the start though it took more than a year of use, feedback and polish to produce
what was nally released.
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
4
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Interface
MOTHER (knob)
e MOTHER knob selects the pattern set that is output. e MOTHER knob
acts as a scalar for the MOTHER CV. e current patch is displayed on the LEDs
near the center top. A key to the patterns is included later in the manual.
CHILD 1-3 (knob, input CV)
e CHILD knobs control the offset in beats of each part versus the mother
rhythm. e knob acts as a scalar for the input CV.
WORLD
e WORLD switch selects which bank of patterns to use. ey are grouped by
world. Old world contains Indian, African and African relatives such as Vodou.
New world contains Funk, Rock and other more modern rhythms. e status of
the WORLD switch is indicated by the orange LED.
BEAT
e BEAT input is a clock input that advances the time on the rising edge
and returns any active gates to zero on the falling edge.
MEASURE
e MEASURE input resets the beat to the start of the measure on a rising edge.
RST
e RST button will pause the advancement of time while depressed and when
released reset the time back to the start of the measure.
MOTHER (output)
MOTHER outputs a 6v low impedance gate suitable for controlling most any gate
driven device.
CHILD 1-3 (output)
CHILD outputs a 6v low impedance gate suitable for controlling most any gate
driven device.
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
2
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Patterns: New World
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
MOTORIK 1MOTORIK 2MOTORIK 3POP 1POP 2POP 3POP 4FUNK 1
5
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Patterns: New World
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
FUNK 2FUNK 3FUNK 4POST
SEQUENCE
PRIME 2PRIME 322RANDOM
BEAT at 25% probability
BEAT at probability given by C1 (CV/knob)
BEAT at probability given by C2 (CV/knob)
BEAT at probability given by C3 (CV/knob)
M
C1
C2
C3
6
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Patterns: Old World
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
KING 1KING 2KROBOTOVODOU 1VODOU 2VODOU 3GAHUCLAVE
7
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Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
Patterns: Old World
Mother
Child 1
Child 2
Child 3
Beat
Measure
RST
Zularic
Repetitor
Mother
Child 2
Child 1
Child 3
World
New
Old
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
M
C1
C2
C3
RHUMBAJHAPTAL 1JHAPTAL 2CHACHARMATAPASHTOPRIME 232DIVIDER
BEAT divided by four
BEAT divided by C1 (CV/knob) (1-32)
BEAT divided by C2 (CV/knob)(1-32)
BEAT divided by C3 (CV/knob)(1-32)
8
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Special Thanks
Shawn Jimmerson
Cyrus Makarechian
Anthony Child
William Mathewson
Mickey Bakas
Tyler Thompson
Alex Anderson
Noise Engineering
Zularic Repetitor
Dynamic Rythmic Generator
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