PULPOLUNAR
ZRGRT collective · drop surface

PULPOLUNAR

Three instruments. One wire.

Three original software instruments that run standalone and play as a family: CATCH-22 shapes the air, PULPO-23 keeps the pulse, LUNAR-24 hums the room — clock, audio and control voltage crossing a single wire while you play.

Hear the family sessions Meet the instruments STORE & DETAILS →

The instruments

CATCH-22

THE TWIN SOVIET-CHIP STEREO FILTER

Two 12 dB multimode cells with the hardware's signature unit-to-unit mismatch kept in: the difference between the channels is the instrument.

  • LP / BP / HP / Notch per channel · cutoff / res / level
  • UD1208 mismatch seeds + warm-up drift
  • White + pink noise, standalone source
  • LINK FREQ / LINK CV · CV in with LED mirror
  • Dual mono · series 24 dB · stereo parallel
zrgrt.com/catch-22 →

PULPO-23

THE ORGANISMIC DRUM MACHINE

23 modules on a 0–10 V patch ecology where everything can interact with everything, and any voltage is both audio and control.

  • BD / BASS / SD / HHT generators + 4 AR envelopes
  • 4-channel looper-recorder with banks and punch-in
  • SHAOS randomness · clock + binary dividers
  • CV-controlled FX · parallel distortion · VCAs
  • 119-point clip patch ecology · MIDI-to-CV
zrgrt.com/pulpo-23 →

LUNAR-24

THE AMBIENT DRONE WORKSTATION

Eight voices under a total eclipse — drone swarms, morphing v/oct leads, and a panel that is already humming when you open it.

  • 6 drone voices (5 oscillators each) + 2 morphing v/oct voices
  • Dual Soviet-chip-style filters, drive and distortion
  • 15 cartridges × 3 programs — 45 effects
  • 12-plate arc keyboard · 25 microtonal banks + Scala .scl
  • Patchbay blueprint graph · 40+ × 28+ points
zrgrt.com/lunar-24 →

Family sessions

Run all three at once and play them as a trio: PULPO-23's clock drives LUNAR-24, LUNAR-24's output feeds CATCH-22, and the performance is captured as heard — no overdubs, no samples. The included sessions are public-domain classical works performed live by the three instruments over one wire.

Listen on zrgrt.com →

Under the panel

Live synthesis48 kHz, every voice in code — no samples anywhere
Mouse + touchLUNAR-24's plates play with pressure · MIDI everywhere
Presets + MIDIfactory banks, patch memory, CC learn
Family wireNYDUS carries clock, audio and CV between instruments