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MONOCHORD — chord plugin & harmony workstation with vintage synth and instrument sounds (VST3/AU for macOS) by ORPH Instruments

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Vintage studio hardware
Rooted in 1980s to 2000s analog and digital hardware, MONOCHORD requires no theory to learn, no plugin chains to wire and no complex routing to set up. It reduces the time to idea. Press or click any key and hear a full chord.
MONOCHORD
WHAT IS MONOCHORD?
MONOCHORD is a harmony workstation, chord synthesizer, multisampler, texture engine and midi effect in one.
FACTORY
FACTORY builds a complete sound in one click. Every click, a new character of the same sound.
No Harmonic Errors
Choose from over 600 chords across 25 packages, all tuned and curated by human ear. It all stays in key.
THE PROCESS
MONOCHORD makes no choices for you and holds no generative AI. It removes the effort, not your intention.
Click a preset row to hear dry sound.
Click again for MONOCHORD Factory mode.
TimeSound PresetKey
00:00Synth 21C
00:00Synth BellsA#
00:00NY Grand PianoA
00:00M1 Deep OrganE
00:00Hand ChimesA#
00:00J8 Tech SynthG
00:00K3 Spec SwooshF#
00:00VPO Section ViolaF#
00:00Wavstation K BrightE
00:00AX73 Clav IIIF#
00:00EP73 Classic PianoC
00:00DW 8000 PianoC
00:00K3 Special HorrorF#
425 STUDIO QUALITY SOUNDS
All rooted in vintage studio hardware. In the character of the sounds behind your favorite records.
  • E-MU Proteus
  • Korg Wavestation
  • Kawai K1–K5
  • Kurzweil K-Series
  • PPG Wave
  • Jupiter-8
  • Oberheim OB-X
  • Yamaha DX7
  • Korg M1
  • D-50
  • Moog Minimoog
  • Moog Memorymoog
  • Yamaha CP-10
  • Yamaha CP-70
  • Yamaha TG500
  • Yamaha TS12
  • Suzuki Omnichord
  • SQNTL Prophet VS
  • MKS-70
  • SQNTL Prophet-5
  • Fairlight CMI
  • Korg DW-8000
  • Korg Mono/Poly
  • Fender Rhodes
  • NY Grand Piano
  • Juno-106
  • Juno-60
  • Real Instruments
  • Casio CZ-101
  • Akai AX73
  • Akai AX80
  • Casio V10
  • Korg Poly-61
  • Yamaha S80
  • Bontempi B3
  • Voyetra-8
  • Ensoniq Mirage
  • E-MU Emax
  • Casio VL-1
  • Siel Opera 6 Kiwi
EFFECTS & CHARACTER
MONOCHORD holds 15 effect engines with 85+ sub-modes, applied across the full signal path to shape Character and Sound.
  • Spatial Pan
  • Reverbs
  • Delays
  • Flanger
  • Phaser
  • Glide
  • Shimmer
  • Tape Machines
  • Sampler Engines
  • Filter Effects
  • Arpeggiator
  • Atmosphere
  • Inflater
  • Brilliance
  • Bass Mode

All effects are inspired by
  • Juno-60 Chorus
  • Boss CE-1
  • Dimension D
  • RE-201 Space Echo
  • Boss DM-2
  • EHX Memory Man
  • MXR Phase 90
  • Eventide H3000
  • Lexicon 480L
  • EMT 140 Plate
  • Bricasti M7
  • Akai S950
  • Akai MPC60
  • Akai MPC2000
  • E-MU SP-1200
  • Ensoniq Mirage
TECH SPECS
FORMATS
  • AU · VST3 · Standalone
  • macOS 10.13+
  • Universal · Apple Silicon + Intel
AUDIO
  • 32-bit float internal
  • 44.1–192 kHz
  • 6 synthesis engines · FM · analog · wavetable · additive · granular · PCM
LIBRARY
  • 16 GB sample library
  • 425 sounds · 70+ multisampled instruments
SYSTEM & I/O
  • 8 GB RAM recommended
  • MIDI in / out · DAW automation
  • Export: MIDI · audio (key · scale · tempo)
  • Hosts: Logic · Ableton Live · FL Studio · Cubase · Studio One · Bitwig
NEWSLETTER
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All product names, trademarks and registered trademarks are property of their respective owners and are used for descriptive purposes only. Names refer to the sonic character that inspired each sound. MONOCHORD is not affiliated with, endorsed by, or sponsored by any listed manufacturer.
© 2026 ORPH INSTRUMENTS
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