Six voices of two oscillators with a shape and a hard sync, a sub, a resonant low-pass and high-pass, poly mod, one effect, an arpeggiator and a sequencer.
Modulr Sextet is a six-voice polyphonic synthesizer after the grammar of a 2015 programmable instrument: two oscillators and a sub, a mixer with noise and a ring product, a four-pole low-pass and a two-pole high-pass, poly mod from the filter envelope and the second oscillator, two ADSR envelopes, an LFO and one effect from five. Built as a VST3 and Audio Unit, and drawn as a 28 HP module.
Each clip is the plug-in itself: a patch is picked in the drawer and loaded, then a played chord or line sounds on it, the way it is played into the plug-in from a keyboard. The bank holds seven patches and seven distinct sounds, and these are those seven. No effects, no mastering.
| Format | Systems | Licence |
|---|---|---|
| VST3 · Audio Unit | macOS 11 or later, on Apple silicon | A licence is needed to make sound. Without one the editor opens and the output is silent. |
The plug-in is built. The Eurorack module drawn beside it, with its eight macro knobs and the control jacks under them, is a design study and is not.

The editor is the plug-in’s own, as it opens. The module is drawn by the specification’s own kit, and its values are illustrative, not measured. The design is the Prophet-6’s grammar, redrawn in Modulr’s own words, and nothing on it is measured against the instrument.
The instrument’s own grammar, as the catalogue recalls it: the sections, the controls and the look the study borrows.
The six-voice programmable polyphonic grammar: two oscillators with a shape select and a sub, a mixer, low-pass and high-pass filters, poly mod, two ADSR envelopes, an LFO with a wave strip, digital effects chosen from five lit types, an arpeggiator and sequencer, and a large program display with a round data knob, banks and write.
A cool black panel in flat modern print under a brushed satin-aluminium head rail: white block markers before every heading, small black knobs ringed with printed dots, square translucent push caps lit red or amber from inside, a large red four-digit program display, and narrow light satin walnut edges.
The module is a design study and is not built. Its macros are the signature controls a player reaches for; each has a control jack under it.
| Macro | Key | Range | Default |
|---|---|---|---|
| Cutoff | vcf.cut | 20 Hz – 20 kHz | 3.0 kHz |
| Reso | vcf.res | 0–100% | 0% |
| Env Amt | vcf.env | 0–100% | 0% |
| Poly Mod | pmod.fenv | 0–100% | 0% |
| Slop | master.slop | 0–100% | 10% |
| Sub | mix.sub | 0–100% | 0% |
| Release | amp.release | 0 ms – 20 s | 200 ms |
| FX Mix | fx.mix | 0–100% | 0% |
| Side | Jacks |
|---|---|
| In | Note (MIDI), V/Oct (CV), Gate (CV) |
| Out | Left (Audio), Right (Audio), F.Env (CV) |
Legendary is the catalogue of the Modulr Synths project: 43 design studies drawn with the specification’s own kit, 33 after the synthesizers of all time and 10 after the drum machines. The makers and years named here are the instrument’s; the names, the layouts and every value are Modulr’s own.