Buy POLYLLOP, get a free gift with purchase:
Four Voice Polymetric Sequencer
Building on the foundation and logic of 510k's flagship sequencer SEQUND, POLYLLOP pushes things further into polyphonic and polymetric territory. Designed for those who want to go beyond simple step sequencing, POLYLLOP lets you sequence up to four independent voices—each with their own rhythm, melody, duration, and velocity lanes.
Whether you're sketching out evolving arpeggios, layering chords, or exploring shifting textures, POLYLLOP gives you plenty of control—without slowing you down.
POLYLLOP is not a synth and doesn’t generate sound—it outputs MIDI, making it ideal for controlling both soft synths and hardware setups. It integrates smoothly with all major DAWs, with clear routing instructions and a minimal interface that keeps the focus on creativity.
From chord progressions to rhythmic pulses, POLYLLOP adapts easily to a wide range of creative tasks in your production workflow.
Features
- Four independent lanes for Gate, Pitch, Length, Hold, and Velocity — each with adjustable length and playback modes.
- Polymeter sequencing — set different step counts per lane to create rich, evolving polyrhythms and shifting patterns.
- Real-time MIDI Transpose — shift sequences chromatically or in scale degrees via MIDI input for expressive live use or DAW automation.
- Scale Quantization — keep everything in key or go fully chromatic; custom user scales and root shift support included.
- Advanced Play Modes — Forward, Backward, Pendulum, Bi-directional, Random (x2), for each lane independently.
- Step Lock — protect steps from randomization and reset for precise control over evolving patterns.
- Integrated randomization and density control — apply controlled chance to notes, rhythms, and dynamics per lane or globally.
- Pattern system — up to 12 patterns per preset, instantly switchable via MIDI notes for live performance or quick variation.
- Export to MIDI — drag sequences directly into your DAW if live MIDI recording isn’t supported.
- MIDI Advance Mode — drive POLYLLOP’s step progression from your MIDI keyboard or clip for free-form rhythmic control.
- Expanded Transpose Options — including Scale-Dependent and Classic modes.
- Easy UI Workflow — intuitive handling of blocks, lanes, and presets.
System Requirements
Mac
- Mac OS 10.14 or higher (Intel / Apple Silicon supported (64-bit only)
Windows
- Windows 10 (64-bit only)
Important Notes
- An internet connection is required to validate the serial key during activation and occasional rechecks.
Please note: Seqund is used as the example
Mac
1. Download the zip folder from your Plugin Boutique User Account and double-click it to oåpen and reveal the installer file.
2. Double-click the .pkg file to begin the installation process > click ‘Continue’.

3. Read through the End User License Agreement and click ‘Continue’.

4. Click ‘Agree’.

5. Select which plugin component (s) you wish to install > click ‘Continue’.

6. Check the install location > click ‘Install’.

7. The installation of your software has successfully completed > click 'Close’.

8. Open your DAW and load up your recently installed plugin.
9. Enter the serial number provided within your Plugin Boutique User Account and click 'OK'.

The Software is now Activated and Ready for Use Within Your DAW!

Windows
1. Download the zip folder from your Plugin Boutique User Account and double-click it to open and reveal the installer file.
2. Double-click the installer file to begin the installation process.
3. Select the location in which you would like to install Seqund > click 'Next'.

4. Select the plugin component (s) you wish to install > click 'Next'.

5. Select a VST2 folder location in which to install the component to > click 'Next'.

6. Review the installation > click 'Install'.

7. Click 'Finish'.

8. Open your DAW and load up your recently installed plugin > Click the 3 vertical dot located at the top of the plugin > Click 'Manage Your License'.

9. Enter the serial number provided within your Plugin Boutique User Account and click 'OK'.

The Software is now Activated and Ready for Use Within Your DAW!
