TeAr by FX-Mechanics is a free polyphonic and polyrhythmic MIDI arpeggiator designed for producers who want to create evolving melodies, layered sequences and complex rhythmic patterns.
Instead of generating audio, TeAr processes incoming MIDI notes and sends new sequences to a synthesizer, sampler or virtual instrument. It is available as an open-source plugin for Windows, macOS and Linux.
Multiple Arpeggiators in One Plugin
TeAr can run several independent arpeggiator engines simultaneously. Each engine has its own pattern, rhythmic subdivision, activation control and MIDI output channel.
This makes it possible to create a bass sequence, a faster melodic pattern and a slower atmospheric phrase from the same incoming chord.
Text-Based Pattern Programming
The plugin uses a compact text language to define notes, rests, sustains, octaves, velocity and probability.
Numbers select scale or chord degrees, while additional commands can repeat notes, move between octaves, introduce random notes or change velocity. Producers can build simple patterns quickly and gradually add more detailed variations.
Euclidean Rhythms and Randomization
TeAr includes a pattern generator capable of creating randomized sequences and Euclidean rhythms.
Euclidean sequencing distributes a chosen number of notes across a fixed number of steps. This is useful for producing balanced rhythmic patterns, evolving percussion-like melodies and polymetric electronic sequences.
Scale-Aware MIDI Processing
The arpeggiator includes a large collection of scales and modes. Patterns can follow the selected root note and remain inside the chosen musical scale.
A Follow MIDI In mode can also change the root dynamically according to the notes played on a MIDI keyboard.
Official TeAr Video Demo
Best Uses for TeAr
- Melodic Techno sequences
- Ambient and cinematic patterns
- Progressive House arpeggios
- Generative electronic music
- Polyrhythmic synth arrangements
- Layered bass and lead sequences
- Experimental MIDI composition
How to Use TeAr in a DAW
Load TeAr on one instrument track, then route its MIDI output to another track containing the synthesizer or sampler you want to hear.
The exact routing method depends on the DAW. Studio One, Ableton Live, Cubase, Bitwig Studio and Reaper can route MIDI between plugin tracks, while Logic Pro may require an additional MIDI-routing configuration.
Compatibility
- Developer: FX-Mechanics
- Price: Free and open source
- Windows: VST3
- macOS: Audio Unit
- Linux: VST3
- Plugin type: MIDI arpeggiator
- License: LGPL-3.0
Final Verdict
TeAr is one of the most original free MIDI plugins available to electronic producers in 2026.
Its multiple arpeggiator engines, scale-aware processing, Euclidean rhythm generator and text-based pattern system offer considerably more flexibility than a basic up-and-down arpeggiator.
The workflow requires some initial learning, but the official tutorial and clear documentation make the plugin approachable. Once understood, TeAr can turn a single sustained chord into an entire network of evolving musical ideas.
It may look slightly like a synthesizer received programming homework, but the musical results are far more entertaining.
Download TeAr from the official FX-Mechanics website:
https://fx-mechanics.com/plugins.html
