Dr. Zoppa has released Windows versions of the AMI-CMMAS series, three polyphonic generative MIDI plugins that until this month ran only on macOS: AMI-POLYCHAOS, AMI-PLSYSTEMS and AMI-POLYMARKOV. On Windows 10 and 11 they install as 64-bit VST3; on macOS they remain an Audio Unit MIDI effect (Logic Pro) and a VST3.
Each plugin turns a held chord into four voices by a different mechanism:
- AMI-POLYCHAOS reads one chaotic trajectory with four delayed heads, and now has LATCH, which keeps the chord playing after the keys are released.
- AMI-PLSYSTEMS reads one L-system line at four speeds, as a mensuration canon.
- AMI-POLYMARKOV learns from a MIDI file or from what you play:
- Press REC, run the transport and play, and the take becomes the corpus.
- Two Markov chains (pitch and rhythm) each learn it with their own memory, from order 1 to 6, and the dynamics travel with the melody: a long memory for rhythm and a short one for pitch keeps the phrasing of the original under a melody it never had.
- CLEAR empties the corpus;
- THRU lets your playing through with the generated notes. Its rhythm now follows the host’s grid.
The current versions (POLYCHAOS 1.1.1, PLSYSTEMS 1.0.5, POLYMARKOV 1.5.1) fix two Logic issues: notes that could hang in Logic 12, and playback that could start by itself when play was pressed after stopping the transport with a note held (Logic sends no note-offs at stop). Other hosts were not affected. The updates are free for existing customers.
All three generate MIDI, not audio, and are routed into any instrument. They come out of doctoral research in algorithmic composition at UNAM (the AMI system, 2022) and are built with Max/RNBO and JUCE.
Pricing & Availability
The plugins are $29 each or $69 for all three until October 30, 2026 ($39 and $99 after).
A fully functional 30-day trial needs no account; licences are per machine and work offline. macOS 10.13 or later (11 or later on Apple Silicon), universal binary, AU and VST3, signed and notarized. Windows 10 or 11, 64-bit, VST3; the installer is not code-signed, so SmartScreen warns the first time (More info, then Run anyway), and the download page lists SHA-256 checksums. Purchase and trial download: drzoppa.com/soft
Videos
AMI-POLYMARKOV YouTube/V7P9-f1WO2E
AMI-POLYCHAOS YouTube/nlP0RHTlbd4
AMI-PLSYSTEMS YouTube/rYrxFeYPkkw
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