One Synth One Sound & One Synth One Song Demos by Eyepatch Entertainment

video upload by Eyepatch Entertainment

"Synthesizers making one sound or more with the press of a key. Now with added full tracks!"

131 demos as of this post. You can use the player controls to skip around. There are some rare (as in not often featured) synths like the Midia Musicbox below. Also see Eyepatch Entertainment Synth Studio Tour - May 2018, and 64 FREE PATCHES - Korg Poly61 vitange synthesizer

Midia Musicbox MQ-100 - One Synth One Sound

video upload by Eyepatch Entertainment

Also see

Ex Paul Davis Casio CZ5000 w/ Books

Note: Auction links are affiliate links for which the site may be compensated.

via this VEMIA listing

Click the auction link on top when you get there for additional listings.

"Casio CZ5000 flagship Phase Distortion polysynth with case and paperwork Ex Paul Davis, the much loved Music Technology lecturer at Ealing College in the 1970s and 1980s who passed away in 2021. He purchased this brand new and used it as his main MIDI synth controller and teaching device through the 1980s and also based his own Music Technology dissertation on it. It has a nice collection of books to go alongside including the original sales folder from Chromatix the keyboard specialists in Ealing. We are trying to find the original reciept as well and it will be included if it turns up. The keyboard had been thoroughly checked out and is in perfect working order apart from slight crackle on the volume and chorus sliders which will probably go away with a bit of usage. It is sad to let this go but we would rather it was used than just sitting behind the sofa gathering dust."

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Casio MT-70: A beautiful sine wave synthesizer from 1982

video upload by David Hilowitz Music

"The sample library I made in this video can be found here: / patron-exclusive-123913159

You can watch the ‪@KeenOnKeys‬ video about this keyboard here:"

Casio MT-70 Sine Wave Keyboard - Full Review

video upload by Keen On Keys

"This is my full review about the Casiotone MT-70, a keyboard from 1982. It is one of 6 Casio keyboards that uses sine waves instead of multipulse square waves. It has a memory system with barcode reader pen, 20 Instruments and 10 Rhythms.

Support this channel and buy a song or album on Bandcamp: https://keenonkeys.bandcamp.com

0:00 Introduction
0:45 Sine Wave Keyboards
2:34 A Look Inside
5:13 Sounds
8:53 Accompaniment
10:59 Barcode Reader
13:20 Sequencer
16:47 Final Performance
18:56 Conclusion"

Casio RZ-1

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

"The Casio RZ was one of the first drum machines with a built-in sampler (and the last Casio drum machine of all time). The pop drum sounds of the '80s were made with the LinnDrum 1 or 9000, Simmons or Roland R-8 (later) so Casio stopped production within 2 years.

The ordinary RZ-1 has 12 PCM drum sounds plus a total sampling time of 0.8 s over four pads, which you can divide into 4 x 0.2 s / 2 x 0.4 s or 1 x 0.8 samples.

Sampling resolution is 12 bits with a sampling frequency of 20 kHz. You can direct the sample from a line or microphone (via the switch on the rear), but sample dumping (SDS) via MIDI is not supported. The internal memory holds up to 99 patterns and 20 songs, which can be combined, chained and looped.

With the MT tape interface, you can “dump” and archive internal patterns and samples to tape or MD-Disc, MP3-Stick or simply your sound card on the PC.

The RZ-1 was often used in pre-Techno / House Aera, and the Snare and Clap are still used a lot."

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THE CASIO CTK 1000 IS SO WEIRD!

video upload by Magical Synth Adventure

"1993's Casio CTK-1000 "IXA Sound Source" is a home keyboard with absolutely astounding semi-editable synth patches! Wavestation-like PCM pads? Check! Nonlinear Waveshaping/FM sounds? Check! Deep evolving textures? Check!

It really is an amazing sounding machine, and the sole example of IXA. It's a shame that CASIO never released this as a pro-level synth, but I'm glad we got these sounds in some form :)"

⁠ Casio VL-Tone 1981, Rhythm and Delay, Boss nimi rack ‪@CASIOMusicGlobal‬

video upload by Electric Vibes

"Casio vl-1 with #boss #bossminirack #bosseffects #casio #minikeys #casiovltone #vintagesynthesizer #synthesizer"

Casio MT-46 with mods

video upload by Ground Grown Circuits

"Demo of the mods I installed on this casiotone mt-46.
Pitch knobs for accompaniment and melody, drum trig i/o, and mutes for accompaniment section."

NAMM 2025: Taqs.im Solo Hybrid Synthesizer

video upload by sonicstate

Interesting notes on popular synths by various countries. Spoilers at the bottom of this post.

"We caught up with Aram from Taqs.im at NAMM 2025, who introduced us to the latest update for the Solo hybrid synthesizer. This synthesizer draws inspiration from diverse global sounds and now features new expansion packs tailored for Indian and Latin music genres. Aram explained that the Solo synthesizer combines three oscillators, offering analog, phase distortion and sample playback. What's unique are its authentic sound sets from around the world which are meticulously coupled with MIDI phrases that reflect specific cultural styles, alongside the ability to incorporate microtonal scales.

Navigating through Solo's interface, we explored the presets organized within a browser tab, featuring drag-and-drop MIDI phrases. Aram showcased how Solo's versatility allows for mixing analog and sample-based sounds, making it easier to achieve various regional sounds. Priced at $99, Solo is available for both PC and Mac, supporting AU and VST formats."

Armenians love the Oberheim OB8, the Balkins love the Casio CZ-101, Greeks the Korg Sigma and Roland SH-2000, and the Arab world loves the KORG MOS expansion engine. Who knew!

Belgian Magazine Article Featuring Mario Mathy

This one is in via Jos who had the following to say followed by an English translation of the article.

"Years ago, I sent you information about Mario Mathy (I think 2019). You published it on your blog. [you can find it in previous posts featuring Mario Mathy here] Afterward, Mario Mathy's 'Jumping Dance' went viral and achieved cult status.

Since your blog has become the most comprehensive and important documented synthesizer resource online, the attached article should also be saved for future history. It would be cool if you could share it with the rest of the synthesizer community. I translated it from Dutch to English using Google Translate.

Notice in the picture below the article that the photo was taken during the period when Mario endorsed Korg.

All I can see in the picture is Korg equipment. The song 'Love Dreams' is from his first album.

I expect most of the songs from his first album ‘Hello This is Mario Mathy’ were created using Korg synthesizers (in contrary to what you would expect from the album cover showing only casio).

After his first album, the single 'Jumping Dance' was released in Belgium. 'Jumping Dance' was from his second album, 'Music-Land'.

On his second album, you can hear a noticeable difference in his sound.

This likely resulted from switching from Korg to Casio synthesizers.

Mario was my piano teacher when I was about 15 years old."

You can check out Mario Mathy's releases on Discogs here.

The following is the tranlation of the article pictured in this post.

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CASIO CZ-5000 40th Anniversary

video upload by WheelRock

"The CZ-5000 is a digital synthesizer released by Casio Computer Co., Ltd. in 1985.
This year, 2025, marks its 40th anniversary. When we first got our hands on this instrument, we were still in middle school. Since then, we’ve created countless pieces of music using the CZ-5000. Sharing these works with the world has allowed us to connect with many people and receive their responses.
What this instrument has brought to us is truly significant. We intend to keep creating sounds and music with it for years to come. Thank you for 40 years, CZ-5000. Here’s to many more!

All Tracks Made with My Casio CZ-5000

Bandcamp: http://nemutai.bandcamp.com/"

Casio CZ-5000 Phase Distortion Keyboard Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

Additional Perfect Circuit listings

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This Booklet from 1984 Taught Keith Crosley (Almost) Everything He Knows about Synthesizers

video upload by Keith Crosley

"This little booklet from 1984 taught me (almost) everything I know about synthesis. Let's go back to basics... and back to the future... with the Casio CZ-101 manuals and see what we can learn about the basics of learning synthesizer programming and sound design. Along the way we'll learn a thing or two about classic synth modulations, some interesting new wavetables, and how to rock the synth guitar! So... Grab your waveshaper and strap your DCW down, because where we're going we don't need any filters! It's time for some retro-digital-synthesis-a-go-go!

LINKS!:

Casio CZ-101 manuals directory: https://drive.google.com/drive/folder...

Casio "Sound Synthesis Handbook" PDF: https://drive.google.com/file/d/1bn7j...

Casio CZ-101 Manual PDF: https://drive.google.com/file/d/1-BUe...

KRC Mathwaves full collection -- 160,000+ wavetables, including new multi/poly inspired wavetables and the "Varieties of Noise" sample library -- usually $29, can be yours for just $20 using code SANDRA at checkout or by following this link: https://www.wavetables.lol/l/wavetabl...

All proceeds go to my sister and her family as she recovers from her accident.

GoFundMe for my sister and her family: https://www.gofundme.com/f/help-jim-a...

Virtual CZ VST plugin at PluginBoutique: https://www.pluginboutique.com/produc..."

NOYSTOISE PT100

video upload by NOYSTOISE

"Handmade experimental synth built around toy Casio sound chip.
More info at www.noystoise.com

00:00 FLY-BYE
00:36 VOICE SECTION
04:53 SEQUENCER SECTION
09:41 LFO SECTION
11:51 JOYSTICK SECTION"

Casio SK-1 with mod

Note: Auction links are affiliate links for which the site may be compensated.
video upload by Ground Grown Circuits

"This mod lets you use an on-board lfo to switch back and forth between the analog filters on the SK-1.
Available for sale on my Reverb page."

via this listing

"Mod Description:
With the switch up, everything functions as normal.
With the switch down, a square wave LFO is used to switch back and forth between the internal sound filters for the melody, creating a neat tremolo effect. LFO rate is set by the knob."

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Studio Tour 2025 - Synthesizer and Drum Machines - vintage Gear from the 70s, 80s & 90s

video upload by 3L3C7RON1C MU51C

Nice custom silver Roland SH-101. Also a Tiracon 6 in there.

Merry Christmas.... ELP style.

video upload by noddyspuncture

Casio CZ-101 "Cars"

video upload by Franz Kreimer Keys

"In diesem Video loope ich meinen Casio CZ-101 Phasedistortion Synthesizer aus dem Jahre 1984. Klar - ich hätte die Drums auch programmieren können, wollte es aber mir dem CZ machen. Das ist kein Versuch, die Sounds des Originalsongs original nachzubauen (die Wortwiederholung ist gewollt) - einfach ein Cover."

"In this video I loop my Casio CZ-101 phase distortion synthesizer from 1984.
Sure - I could have programmed the drums, but I wanted to do it with the CZ. This is not an attempt to recreate the sounds of the original song (the repetition of words is intentional) - simply a cover."

Casio SK-5 Compact Sampler Keyboard

Note: Auction links are affiliate links for which the site may be compensated.

via this listing

Additional Perfect Circuit listings

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Casio CZ-1000 Synthesizer Demo

video upload by gstormelectro

"Audio + Video by G-Storm Electro c. 2024

Today the Casio CZ-1000 is giving me the feels with an Eventide Timefactor. Original patches, recorded direct via Roland GO:Mixer Pro-X."

G-Storm Electro:
MUSIC https://gstormelectro.bandcamp.com/
BLOG http://gstormelectronica.blogspot.com/
LISTEN/DOWNLOAD http://soundcloud.com/gstormelectro
REVERB via The Malcolm Cecil Reverb Shop

MPC X Session: Akai Mini D, Jura, and Casio SA-46

video upload by Retrothusiast

"Join me for another creative MPC X session as I expand on a song idea that started with a simple bass line on my son’s Casio SA-46. Using the Akai Mini D plugin, I recreated the bass sequence and layered it with lush bells and arpeggios from the JURA plugin. All of this was produced directly on the retro-inspired MPC X SE, with my Prophet 10 acting as a MIDI controller.

This session showcases the power of the MPC X and Akai’s incredible plugin suite, proving you don’t need external instruments to create a full-sounding track.

👉 Gear Featured in This Video:

Akai MPC X SE
Akai Mini D Plugin
JURA Plugin
Casio SA-46 (original bass idea)
Prophet 10 (MIDI controller)

🎵 Listen to tracks recorded off of the MPC X SE:

Retrothusiast · MPC X Session: Mini D, Jura, and Casio SA-46

Chapters:
0:00 Intro
0:37 Session Begins
9:50 That's a Wrap!
10:18 Full Track

I love retro music production gear, computers and electronics. Follow me on YouTube, Facebook and Retrothusiast.com if you share the same passions.

https://www.retrothusiast.com"