Jun Murakami Synth81Z is a four-operator FM instrument, released in October 2026, built by measuring a real Yamaha TX81Z. It covers the YM2414 OPZ chip and the output stage, with polyphony of 8, 16, 24, or 32 voices, eight-part Performance mode, and a five-slot effects rack shared with Synth-80.
A hardware editor and librarian mirrors edits to a connected TX81Z, imports .syx and .mid files, and builds banks. It runs as standalone, VST3, and AAX on Windows 10 or later, and adds AU on macOS 10.15 or later. The intro price is $39 through 31 October 2026, then $59. For the full breakdown, see the Synth81Z first look.