Music Thing Modular Turing Machine Mk II
Random looping sequencer for evolving generative melodies
10 HP Eurorack module
The Turing Machine Mk II is a random looping sequencer for Eurorack modular synthesizers. It generates evolving CV and gate patterns by randomly flipping bits in a shift register, with a probability knob controlling how chaotic or locked the sequence becomes. Its musical character ranges from perfectly locked melodic loops to wildly unpredictable generative sequences, making it ideal for self-playing patches and evolving compositions.
Features
- 8 or 16-step looping shift register sequencer
- Probability knob controls randomness from locked loop to total chaos
- 10 red LEDs display current sequence state
- CV output via DAC0800 for melodic sequencing
- Gate output derived from shift register bits
- Auxiliary output for additional CV or gate signals
- Clock input for external sync
- Reset input to restart sequence
- Length CV input for voltage-controlled loop length
- Probability CV input for voltage-controlled randomness
- Range CV input for voltage-controlled output scaling
- Rotary switch for 7 selectable loop lengths: 2, 3, 4, 5, 6, 8, 16 steps
Controls & Jacks (19)
- Scale — Controls the probability of random changes occurring in the sequence
- Noise — CV input to modulate sequence length
- Out — Outputs gate signal for each step
- Chance — Sets the range of CV output voltage
- Clock In — Receives clock/timing trigger to advance the sequence
- Length — Sets the length of the sequence from 2 to 32 steps
- CV — Outputs the sequenced control voltage
- Pulse — CV input to modulate probability
- Write — Selects between different sequence generation modes
- CHANCE — Controls the probability of random changes occurring in the sequence
- SCALE — Sets the range of CV output voltage
- WRITE — Selects between different sequence generation modes
- LEDs — 10 red LEDs showing the current state of the shift register bits in the sequence
- Reset In — Resets the sequence to the beginning
- CHANCE CV — CV input to modulate probability
- SCALE CV — CV input to modulate output range
- CV OUT — Outputs the sequenced control voltage
- PULSE OUT — Outputs gate signal for each step
- MIX OUT — Auxiliary CV output
How-To Guides
- Locked Melodic Loop
- Slowly Evolving Ambient Melody
- Chaotic Generative Sequence
- Voltage Controlled Probability
- Generative Drum Trigger Patterns
- Phrase-Locked Generative Sequence
- Generative Bass Line
- Dual Voice Generative Patch
- Morphing Loop Length
- Initial Calibration
Explore the interactive Turing Machine Mk II panel on BleepDex — tap any control to learn what it does.
