Casio CZ-1000


The Casio CZ-1000 Digital Synthesizer has one of the most unique Oscillators of all time; Phase Distortion Synthesis, (PD). Phase Distortion through Oscillator circuitry was accomplished by reading a sine wave table stored in memory. The most significant bits of an initial linear frequency counter are under envelope control transformed into a secondary phase angle signal which is then used to read the sine wave. Depending on the wiring, the transform will change and a wide variety of wave shapes can be produced. The CZ-1000 could also emulate the variable resonance found in analog voltage controlled filters using this technique!

The CZ-1000 Metasounds Synthesizer Patch Banks use the power of Phase Distortion Synthesis, and 8-Stage Envelope Generators to their maximum ability. Variable Resonant Analog Emulations and Digital Soundscapes, along with Traditional Instrumental Sounds, are included within this collection. Unfortunately, at this time, I can only make this package available for Atari ST™ Computer users, as the CZ-1000 Metasounds Synthesizer Patch Banks are in TOS™ / GEM™ format only, (read below for emulation alternatives!).

More great news is that as of Sept. 2014, you don’t even have to own a CZ-1000! The all new VirtualCZ is the first software emulation of the Casio line of CZ Synthesizers that can import CZ System Exclusive Data! Click here to find out more.

Casio CZ-1000 Package Contents

  • Sounds:
    • Casio CZ-1000, 64 Patch CZ Sound Bank 1, in CZ LIB-II Atari TOS/GEM computer file format, (CZ-101 Compatible)
    • Casio CZ-1000, 64 Patch CZ Sound Bank 2, in CZ LIB-II Atari TOS/GEM computer file format, (CZ-101 Compatible)
    • The Atari ST – CZLIB Casio CZ-1000/101 version 2.0 Sound Librarian Program
  • Documentation:
    • Sound documentation (this document)
    • The Casio CZ-1000/101 Owners Manual
    • The Casio CZ-1000 Service Manual with Electronic Schematics

Using the Atari ST CZLIB Program on your PC

Although the Casio CZ-1000 Metasounds package has been created for the Atari ST line of computers, you also have an opportunity to experience this package on your PC using an Atari ST MIDI enabled Emulator! I Recommend, and have thoroughly tested the Steem Engine Atari ST Emulator. To download the Steem Engine Atari ST Emulator visit the main development site here:

Where you will not only find access to the Emulator, but Instructions, Support, and Links to Resources! Below are screen shots of the Atari CZLIB Program running on the Steem Emulator using a PC, with the Casio CZ-1000 Metasounds package loaded and ready for transmission to a CZ-1000/101. Please see this program in action below:

The Steem Engine ST Emulator Desktop:


The Atari ST CZLIB Program Loading:


The Atari ST CZLIB Program Splash Screen:


Loading the Metasounds into the CZLIB:


Metasounds Successfully Loaded:


Loading Bank 2 into CZLIB:




The CZLIB “About” Screen:


Sound File Summary of Terms

The files below are provided free and as is, (previously offered by me through Metascape Media for $5.00), no warranty or support implied or otherwise. You must agree to the END USER LICENSE AGREEMENT  before downloading the provided .zip archive. The archive is also password protected. To gain the password, please leave a personal “thank you” message within the “comments” section below with a valid email address so that I may provide the archives password for you.

This ensures a proper count of the users who download, and use these sounds. Your email address will NOT be used for any other purpose than to gain the archived password. Thank you for understanding, and I sincerely hope you enjoy making music with my sounds, and the various included sounds within the package. I would also love to hear your work using these sounds, but that’s completely up to you. You’ll have my email address, link me to your creative genius anytime keyboard 

Sound File Download

Casio CZ-101/1000 Video Demo


The Atari ST – CZLIB  Casio CZ-1000 version 2.0 Sound Librarian Program is Copyright  1988 Steve Johns

The Casio CZ-1000/101 Owners Manual and Electronic Schematics are Copyright 1984 Casio

All new Casio CZ sound banks Copyright 2014 Michael Lyon


49 thoughts on “Casio CZ-1000”

  1. Hi Michael, thanks very much for the patches. I just dragged my CZ1000 out of storage to start using again in my studio. It was the first poly synth I bought back in the 80s. Found your page through Google when searching for patches to get me going. The only other ‘patches’ I have are written out on pages in an old ring binder, lol.

    1. To those with an Atasi ST available: Could you do a .syx dump of these patches? I never used an ST and am hesitant to invest the time for setting up the emulator. I doubt I’d get this to run…

      Many thanks!

      1. I wish I could do this for you. I still have my Atari 1040ST but no longer have my old Casio CZ synth. When I first made these CZ banks of sounds, Atari’s were used more than PC’s, which is why it’s still in this format. Reading your request makes me want to have an emulated setup for PC that is easy to install, and comes with ready to use Atari programs long forgotten but useful. My good friend Tim Conrardy, an awesome person and musician who passed a few years ago, used to have such an Atari archive. Tim and I shared many Atari music programs with each other, and I happen to still have them all. Time allowing, maybe I can whip something up for everyone 😉

  2. First off, thank you very much for this awesome resource. I agree to the EULA.

    I literally just got done buying a CZ-1000 from one of my friends, and he will be shipping it very soon. I unfortunately do not own an Atari ST to transfer the SysEx files to the synth, but I do own an Apple iBook G3 that could probably handle the job quite easily. It’s now just a matter of finding a SysEx librarian, which I don’t think will be very difficult, given the age of the iBook.

  3. Michael,

    Long time no talk. The CZ1000 was my third synth and I still have it. Along with I have three STs that are on the back burner for now. All are showing various levels of bombs during POST. But since they have MIDI support now with STeem, the STs will have to wait.

    Thanks for all your support of classic hardware!


  4. Thank you! Can’t wait to try these after just recently been amazed by your K1 patches. I own a CZ-5000 which I’m on the edge of selling. Let’s see if your patches can convince me of keeping it :)

  5. Hey, thanks for sharing!

    Would you mind sending the password to me? Same e-mail as the one you sent the HT-700 password a while ago :) while we’re at it, could you also include the password for the Kawai K1 II files too?

    Thanks once again!

    1. Hi Biru, unfortunately I used my CZ so long ago the only songs I made with it are on my first release : “Bridges of Light (1993)”, and I haven’t uploaded any of those songs as of yet, but plan to in the future :)

  6. Great site you have here but I was curious if you knew of any discussion boards that cover the Casio CZ? If you have any recommendations, please let me know. Kudos!

    1. Hi Ulrich, I attempted to email the password and some resources to the given email address, but it came back as a failed delivery. Please let me know how else to send this to you. Here are the Casio CZ resources you requested:

      Thank you for posting, I actually found a few support groups for the CZ series of Synths on the following links:

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