Affordable, rack-mount version of the Yamaha FM synths from the 80s, though a bit different to the popular DX7.

• Yamaha TX81Z Synthesizer - Getting Started Programming FM
• Yamaha TX-81Z Performance tips / Chord memory etc

• free online patch editor for TX81Z / DX11 / DX100 / DX21 / DX27
  • synthmata/synthmata.github.io/tree/master/tx81z
• TX81ZEdit - VST and standalone editor. Not sure if it's actually finished. Site is a bit suss.
• Synthassist Yamaha TX81Z £40 though
  • Yamaha TX81Z Editor & Librarian - Demo
• eclab/edisyn is a patch editor and manager (librarian) compatible with multiple synths, including this one.
• CTX81Z and Yamaha TX81Z - For Ctrlr.
• TX81Z Programmer - Now-open-source Windows program By Matt Gregory, who also hosts a great TX81Z page.
  • mgregory22/tx81z-programmer
• DX/TXconvert - Converts patches between DX (6-op, 1 waveform) and TX (4-op, 6 waveform) formats.

• Le Singe Tx 81z Banks. 7z - 10 patches.
  • Demo by Le Singe.
• Classics Corner - DX Series (archive) - Some patches on the old official Yamaha page. The DX11 ones should work too?
  • 1410 Voice TX81Z Library - Collected together in TX81Z Programmer format or Matt Gregory's page.
• 4 OP FM Banks - Big download, supposedly every free one compiler could find. Have to sign-up to download.
• Yamaha TX81Z Downloads on Yamaha Musicians. Requires signup to download.

• Sound Source Unlimited made a set of 9 banks, some mob called Greytsounds flogs downloads of them on EBay and Reverb.
  • TX81Z SSU patch demos
• Yamaha TX81Z “FM Depths” Soundset
  • Yamaha TX81Z "FM Depths" Soundset - demo
• Yamaha TX81Z/DX11 Synth Patches - Sound Library - USD$50, no idea what they're like or how reputable the website is.
• Yamaha TX81Z Soundbanks - Patchman Music. Two are USD$25 each, one for a breath controller is USD$40. Discount for buying multiple.
• Yamaha TX81Z DX11 DX21 – Patches Sound Banks Syx and more - Monotanz. 5€.

• Stereoping's Synth Controller has a TX81Z version. Expensive, but there's a DIY version for about a hundo less:
  • https://www.stereoping-shop.com/de/
  • https://www.youtube.com/watch?v=KK7G6ILFwsI

Software versions you can use in DAWs and VSTs, etc.

• gleb812/cs81z - Csound emulation.
• gesellkammer/sc-tx81z - SuperCollider emulation.

• TZQuad - Adds two more banks of user memory. The synth can only see one at a time, so you have to switch the new bank into the 'I' slot and reboot for it to be usable. At this point in time seems easier to just make a custom bank of what you want with software on a computer.
• Fixing the transformer hum in the TX-81z.

• The Yamaha TX81Z Homepage - Lots of links and things, by Matt Gregory.
• Yamaha TX81Z
• Yamaha TX81Z - Polynominal page with lots of info.