Meridian

Meridian is a MIDI sequencer that merges Euclidean sequencing with generative control, allowing for the creation and evolution of complex, musical patterns in real time. Unlike traditional Euclidean sequencers, Meridian supports true polyrhythms, per-track clocking, and advanced randomisation capabilities, making it ideal for studio composition and live performance.
Meridian’s intuitive design lets you manage four independent tracks within a single device, each with its own clock, sequence length, and note logic. With added features such as preset storage, Push integration, and note/velocity randomisers, Meridian goes far beyond typical step sequencing.

MIDI Generators Sequencers

Meridian

Generative Euclidean MIDI Sequencer for Ableton Live.
Set the frequency at which randomizations will occur, specify low and high note limits, and let the process unfold. A velocity randomizer adds a human touch to the outputted notes' velocities.

While there are numerous Euclidean sequencers available, Meridian distinguishes itself not only through its optional generative controls for real-time sequence generation but also by its ability to generate authentic polyrhythms, unlike the Euclidean MIDI device integrated into Live 12's MIDI tools.

With the stock Live 12 Euclidean device, a 5-step pattern will repeat indefinitely until the clip is full, at which point it will resume from the beginning. In contrast, Meridian's four tracks each have their own clock, ensuring that a 5-step sequence will loop as soon as its five steps have finished triggering. Adding a 16-step pattern on another track will allow the polyrhythms to make themselves heard, as the 5-step pattern accents different beats of the 16-step pattern each time it plays. The two patterns will not synchronize again until 80 steps have passed (5 steps x 16 steps).

If this is confusing, I walk you through it in the video. :)

Also, you can store your favourite patterns within the preset matrix or even store an entire set's worth of patterns and switch between them with ease.

I believe this device inspires both creative studio work and live performances. Furthermore, it features nine banks of mappings for the Push, enabling users to operate the device without ever needing to turn to their laptop.

£12.00

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1. Four Independent Tracks

Each track includes controls for:
- Note duration
- Step length
- Number of events (notes)
- Pattern rotation
- Note randomisation
Retrigger button per track for injecting stutters, fills, and live rhythmic changes.

2. Authentic Polyrhythm Generation

Each track runs on its own independent clock.
Supports patterns of different lengths (e.g., 5-step vs. 16-step) without forced alignment.
Enables natural rhythmic interplay where sequences loop independently.
Unlike Live 12’s native Euclidean device, Meridian patterns do not sync to clip length but loop as soon as they finish.

3. Jam Mode (Pattern Evolution)

Automates the evolution of sequence settings over time.
User-defined change rates: 1/4 note, 1/2 note, 1 bar, etc.
Encourages non-repetitive generative rhythm building.

4. Note Jam Mode (Pitch Evolution)

Randomises note values within a set range.
Define low and high note limits per track.
Pitch changes occur at chosen time intervals: 1/4 note, 1/2 note, bar, etc.

5. Per-Track Velocity Randomisation

Humanises MIDI output by randomising note velocities.
Adds variation and realism to machine-generated patterns.

6. Preset Storage Panel

Save and recall up to 32 patterns.
Ideal for saving favourite grooves or managing multiple sequences in a live set.

7. Global Controls

Set a global subdivision affecting all four tracks.
Two powerful global randomise buttons:
- Randomise all sequence parameters.
- Randomise all generative settings.

8. Push Integration

Features nine banks of Push mappings.
Allows full control of the device without needing a laptop.

1. Polyrhythmic Composition

Easily create interlocking rhythmic layers that evolve naturally.
Perfect for complex drum patterns, ambient textures, or modular-style sequencing.