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Piano house composer · 0.3.2

Chordarium.

From a chord to a track.
Build piano-house phrases, bass lines and variations. Try it online. Get the complete plug-in for your DAW.

VST3 · Audio Unit · Standalone
macOS 11+ · Apple Silicon & Intel · Signed & Apple notarized

€89 → €59 launch offer. €30 off applied automatically.
One payment. One-year license. Installer and license key delivered after checkout.

Installation & DAW setup ↓ · Already purchased? Get your download ↗

EXAMPLE / C MINOR4 BARS
Cm701A♭maj702E♭maj703B♭04
PianoBassAn idea to make your own.

All the MIDI. Ready to use.

Start with a phrase

Get an idea moving.

Explore chords and bass together. Repeat a seed, change voicings and build arrangement variations with built-in sound previews.

MAIN and every card

Keep the MIDI.

Drag the MAIN phrase or a card’s arrow handle into a DAW track, or save a MIDI file. Choose your own instrument and keep editing the notes.

Live MIDI

Play in sync.

Send MIDI to Serum or another DAW instrument. DAW Sync follows the host BPM, timeline and Play/Stop. Turn it off to use a manual BPM.

Try online. Get the complete plug-in.

Free browser demo

Hear your next idea.

Try Chordarium at chordarium.com, without installing anything.

  • Listen to five replayable examples and their variations.
  • Listen to the built-in sound previews.
  • The browser demo does not export MIDI.
Try online demo ↗

Complete Mac plug-in

Take it to your track.

After purchase, download the installer and find your license key in your Lemon Squeezy order. Activate once to enable all MIDI features.

  • Unlimited MIDI exports and MAIN/card drag-and-drop.
  • Live MIDI with DAW tempo and transport sync.
  • First activation with the key from your receipt or order.
Buy plug-in · €59 ↗

€89 · LAUNCH59 saves €30. Final taxes, if applicable, shown at checkout.

Install. Activate. Make music.

  1. Purchase Chordarium, then open your Lemon Squeezy order to download the Mac installer. Your receipt links to the same place.
  2. Quit your DAW. Open Chordarium-0.3.2-macOS-universal.pkg and follow the installer. It installs VST3, Audio Unit and the standalone app.
  3. Open Chordarium from Applications, or rescan plug-ins in your DAW and load Chordarium by Tembro.
  4. In the dedicated Activate Chordarium dialog, paste the license key from your receipt or Lemon Squeezy order and press Activate. This first activation enables all MIDI features.
  5. Generate a phrase. Press Save MIDI, hold Drag MIDI for the main phrase or a card’s Drag button and drag into an instrument track. Route live MIDI to play a receiving instrument.

Upgrading from a manual install? Move older Chordarium copies out of your user Audio/Plug-Ins folders before rescanning. Keep a backup outside those folders so an older copy cannot mask the new installation.

04 / Good to know

Your DAW. Your sounds.

How do I use live MIDI in Ableton Live?

Load the VST3 on a MIDI track. Add a second MIDI track with Serum or another instrument. Set MIDI From to the Chordarium track, select Chordarium in the selector below, and set Monitor to In. With DAW Sync enabled, the main phrase is ready: use Play and Stop in your DAW. Press a card’s Play button to select that card. Turn DAW Sync off to use manual BPM and Play MIDI inside Chordarium.

How do I use it in Logic Pro?

Load the Audio Unit instrument to compose and preview, then drag a card or import its MIDI file onto your instrument track. This release does not include a separate MIDI FX component for routing live MIDI to another Logic instrument.

How does DAW Sync work?

Enable DAW Sync to follow the DAW BPM, timeline and Play/Stop controls. Turn it off to enter a manual BPM and play independently. The setting is saved with each DAW plug-in instance.

How do the internal piano and MIDI out differ?

The internal piano is a listening preview through your system audio output. MIDI out sends notes to Serum or another receiving instrument. Chordarium does not render its piano preview through the DAW audio chain. In the standalone app, choose a MIDI output device in Audio/MIDI settings.

How do I activate my purchase?

Paste the key from your receipt or Lemon Squeezy order into the dedicated Activate Chordarium dialog once. After activation, MIDI export, MAIN/card drag-and-drop and live MIDI are available. The free browser demo is at chordarium.com.

Where are my download and license key?

Open My orders on Lemon Squeezy. Your receipt links there too. The installer and license key are delivered after purchase.

Can I use Windows or Linux?

The current installer is for Mac only. Windows and Linux downloads are not included in this release.

Your next track starts with an idea.

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