Mystery Synth in Norwegian Vintage Synthesizer 70's and 80's Dreams Full Album

video upload by Kaj Roger Willumsen

This one was spotted and sent in via Ivan Trajkovic aka dejayiwan. Note the video is from 11 years ago so not AI. Could be a render for a soft synth or other though. Could be DIY, but note the touch panel or screen. According to the YouTube comments "Picture is only for cover. Not sure which synth it is. Will try to find out." There was no follow-up that I could find after that aside from mention the album itself mainly features Arturia. You can find a list of hardware synths and some harware synth spotting in this previous post featuring Dreamland. If you know what that blue synth above is, feel free to leave a comment at the bottom of this post, or send email to matrixsynth at gmail.com and I'll update the post with anything definitive. BTW, you can find additonal Mystery Synths via the Mystery Synths label here. There have only been 23 including this one, to date, since 2005. Update: answer in the comments of this post below. That was quick.

Here's the video description for the above:

"Norwegian Vintage Synthesizer 70's and 80's

Is now available on.

https://itunes.apple.com//artist/kaj-...

Spotify: https://play.spotify.com/artist/2MO67...

Some songs are made for Norwegian television documentary.

1.Dreamland----- 0:00
2.Saltfjellet ----- 4:32
3.80's movement -- 7:06
4.Nordlandsbanen- 10:31
5.Voyager 2--------- 14:31
6.Dolphins song---- 18:00
7.Kepler Telescope--21:53
8.Deep Impact------ 26:09
9.Reisen--------------- 29:15
10.Mariner 2----------33:40
11.Mars------------ 38:00
12.Venus------------- 40:49
13.Supernova----- 45:20
14.Tones Comforder--49:25
15.Jupiter------------ 52:40
16.Home--------------- 57:34
17.Back to 80 century- 1:01:14
18.We fly out of place--1:05:10
19.Minded Traveling--- 1:08:00"

Skyline Fortynine P (Hohner Little Lady) 49 Key String-Orchestra Synthesizer

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

via this Reverb listing

Video in the listing previously posted here. "If you know, you know. These almost never show up, and there’s next to no info online. It’s one of the hardest Hohner keyboards to track down.

This unit is in excellent condition, both technically and cosmetically. The real-wood casing is beautifully preserved with only light signs of use. Keys, switches, sliders—all exceptionally clean.

Everything functions perfectly.

All sound registers can be switched or blended freely
Built-in vibrato + sustain
Dedicated bass voice for the lowest octave (individually switchable)
Individual volume controls for each section
Key contacts are flawless—no dead notes or crackle
Accompaniment System:
The auto-accompaniment can run silently if you want only the bass sequencing. Changing rhythms reshapes the bass pattern, making for surprisingly interesting and musical sequences. The onboard memory hold lets you tap a bass key once and have it sustained automatically—works even without the rhythm section active.

Sound Output:

Built-in speaker underneath (clean, zero distortion)
Line-out on the rear for external amps
Pedal input (pedal not included)
Dimensions: approx. 82cm W × 19cm H × 40cm D
Weight: approx. 12.7kg

A seriously rare piece—clean, fully working, and ready for a new home."

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Arp Quadra Polyphonic Analog Synthesizer Ready For Reassemble

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

via this eBay listing

"ARP Quadra synthesizer. Currently in parts and needs to be reassembled. Includes new illuminated sliders and touch sensor strip from Synth Chaser.

This is a project synth that I am just not getting around to rebuilding. Time to find a new home and give someone else a chance to bring this amazing vintage synthesizer back to life."

Pics of the inside.

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Synthesizing with Moog | Lesson 7: Patterns

video upload by Moog Music

Synthesizing with Moog

"'Synthesizing with Moog' invites you on an enlightening journey that answers a complex question: how exactly do synthesizers work?

In the seventh and final episode of Synthesizing with Moog, we zoom out from the discreet moment of the note and look at how the synthesizer creates patterns and musical phrases. The sequencer was initially created by Don Buchla as a rudimentary preset storage system, sending preset voltage values to various parameters of the synthesizer. When a square wave oscillator (or clock) signal is used to address the stages of the sequencer, melodies begin to emerge, bringing us back to the fluidity of time.

Written, hosted, filmed, and produced by our team of electronic musical instrument experts, this new seven-part educational video series makes learning the fundamentals of synthesis accessible, engaging, and inspiring for anyone curious about science, music, and how the two worlds converge. We set out to create a series that brings you as much technical knowledge as it does entertainment and joy as you watch each episode!

We invite you to follow along with us at home with a printable worksheet corresponding to the contents of each weekly episode. https://inmusic.to/bdhnff3m

Creator, writer, and host: Chris Miller
Director and editor: Paul Shaver
Producers: Max Ravitz and Chris Miller
Director of Photography: Paul Shaver
Music: Max Ravitz and Gunnar Haslam
Graphics and Animations: Ryan Ford
Special thanks to Ana Rome
Filmed on location at Schneidersladen Apotheke, Berlin"

Synthesizers.com is Back with Dan Snazelle of Snazzy FX

via Synthesizers.com

WE'RE BACK!
We are thrilled to announce that Synthesizers.com is returning to full operation — under new management and with a renewed commitment to excellence in all things 5U/MU!

Thank you for your patience as we finished our big transition: relocating the company from Texas to our new home in the Boston area, rebuilding production lines, organizing inventory, and preparing to craft the same world-class instruments you’ve always known us for.

We’re reaffirming our dedication to founder Roger Arrick’s vision while entering a new era for Synthesizers.com. Our path forward is guided by three core commitments:

Commitment One
We will continue to hand-build the highest-quality modular synthesizer instruments here in the USA — crafted with care, precision, and in the spirit of the modular community that has supported us for decades, designed and built for musicians, artists, engineers, performers and hobbyists around the world.

Commitment Two
We will honor the legacy of our existing modules while exploring the boundaries of what’s next. A few legacy modules will retire, and in their place we will design and introduce an exciting new generation of analog and digital modules to expand the Synthesizers.com catalog.

Commitment Three
We will remain dedicated champions for the entire 5U/MU community. That means expanding options for 5U/MU cases, power systems, and accessories — and actively supporting the broader ecosystem of 5U makers, builders, and designers who continue to grow this format.

In the coming weeks, you’ll see updated inventories, new product announcements, and a stronger customer-service focus. Under the leadership of Dan Snazelle of SnazzyFX fame, our team is here for you — by phone, email, social channels, or on the ModWiggler Synthesizers.com forum.

Here are a few words from Dan about the Synthesizers.com journey.

"As someone who has spent the last 30 years involved with synthesizers I am extremely excited to be stepping into the role of leading Synthesizers.com. We have put together a great team so we can continue the tradition of making synthesizers by hand, while also working to bring new modules to our customers. I can't wait to meet people who own our systems and I am also going to be putting a lot of thought into bringing new musicians to large format synthesis" Thank you for welcoming us back. We can’t wait to show you what’s coming.

Cwejman S1 MkII SN 291

Note: links to listings 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.

"One of very many items from Calum Hunter's superb home studio. Beautiful Cwejman S1 Mk2 semi-modular analogue synthesizer. Rare and sought-after, of course. This gorgeous near-mint cream / eggshell coloured version is serial number 291.

Thorough checking shows that the PWM range of one oscillator is much lower than the other, but otherwise everything seems exactly as it should be. Packing 12GBP to include a UK or Euro IEC mains lead."

CLICK FOR MORE »

Synthesizing with Moog | Lesson 5: Modulation

video upload by Moog Music

Synthesizing with Moog

"Composer Morton Subotnick once said that the sonic palette of a synthesizer is determined not by the number of components it contains but the ways in which they can modulate each other. Modulation allows us to take static sounds and add movement to them – to create expressive motion like vibrato and tremolo, or to create new and novel textures. In this lesson we explore the basics of modulation, using Low Frequency Oscillators (LFOs) and envelopes to modulate pitch, timbre, and amplitude, and harnessing the power of randomness to add unpredictable elements to our sounds.

Written, hosted, filmed, and produced by our team of electronic musical instrument experts, this new seven-part educational video series makes learning the fundamentals of synthesis accessible, engaging, and inspiring for anyone curious about science, music, and how the two worlds converge. We set out to create a series that brings you as much technical knowledge as it does entertainment and joy as you watch each episode!

We invite you to follow along with us at home with a printable worksheet corresponding to the contents of each weekly episode. https://inmusic.to/bdhnff3m

Creator, writer, and host: Chris Miller
Director and editor: Paul Shaver
Producers: Max Ravitz and Chris Miller
Director of Photography: Paul Shaver
Music: Max Ravitz and Gunnar Haslam
Graphics and Animations: Ryan Ford
Special thanks to Ana Rome
Filmed on location at Schneidersladen Apotheke, Berlin"

Korg ARP 2600 FS Semi-Modular Synthesizer

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

via this Reverb listing

"Faithful recreation of the ARP 2600 analogue synthesizer. The Korg reproduction retains all of the ease of use and sound of the original semi-modular legend and adds real improvements for integration in a modern studio, not least MIDI, USB and vastly improved outputs.

Choose between the pre and post lawsuit filters, both retain the unique "ARPness' of the filter tone

This particualry synth has only had the lightest of use in a home studio and really needs to be properly cherished and played.

All original pieces included such as flight cases manuals cables etc.""

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The Florian Schneider Collection to Be Auctioned at JULIEN*S November 19

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

via JULIEN*S

"THE FLORIAN SCHNEIDER COLLECTION

Auction to be held at Musician's Hall of Fame & Museum, Nashville, on November 19

An incredible collection of more than 450 artifacts from the life and career of Florian Schneider, co-founder of the pioneer electronic band Kraftwerk."

Pics and videos featuring some of the gear below, and his Lederhosen for good measure (thanks greg!).

Update: the post has been fully updated with all the synth related gear. This may just well be the longest post to be featured on the site. I wanted to capture all the pics for all of the details including notes, scuffs, and of course serial numbers. It's an interesting look into what he used, the condition he keped his gear, in some cases, how he actually used his gear. Note the phonetics on the keys of the Casio CZ-101 and DX-100. Note the Midi Switch Box with a built-in speaker? What's that about? Note the camouflage key strap on the Korg RK-100 Remote Keyboard. Did he pick it out himself or did the keytar just come with it? Note the repeat midi controllers and the MIDI saxaphones. Wind was his primary instrument. You'll find a ton of the acoustic gear he used in the other listings. This is a fascinating insight into both what and how he used his gear.

Side note: there is no affiliate compensation for this post. The note at the top automatically shows for all posts with the Auction label.


Rack Mount Sennheiser VSM-201 Vocoder

Starting Bid $5,000

Estimate $20,000 - $40,000 USD

A late 1970s Sennheiser VSM 201 Vocoder with no serial number from the personal studio and collection of Florian Schneider of Kraftwerk (see images). While it’s said that only a few dozen of these Vocoders were produced, a few examples made it into the hands of forward-thinking musical artists including Herbie Hancock, Daft Punk, and of course, Kraftwerk, who used a VSM-201 like this on their albums Man Machine (1978) and Computerworld (1981). The VSM-201 has an intelligible sound that has not yet been bested by modern gear. Includes power cable. This VSM-201 has been removed from its wooden enclosure (which bears the serial number plate) and modified with a metal rack mount casing, presumably for live use. Requires 240v, IEC power cable not included.

Dimensions: 19 x 9 x 9 inches

Category: Kraftwerk, Equipment

Provenance: PROVENANCE From the Estate of Florian Schneider

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Synthesizing with Moog | Lesson 3: Vibrations

video upload by Moog Music

Synthesizing with Moog

"Sound is a phenomenon of vibrations in the air. In this episode, we look at the source of vibrations on the synthesizer – the oscillator. We investigate how to tune the oscillator to a particular note and how to add oscillators together. We also dive into the topics of harmonics, looking at how the shape of oscillation creates distinct tones with different harmonic characteristics.

Written, hosted, filmed, and produced by our team of electronic musical instrument experts, this new seven-part educational video series makes learning the fundamentals of synthesis accessible, engaging, and inspiring for anyone curious about science, music, and how the two worlds converge. We set out to create a series that brings you as much technical knowledge as it does entertainment and joy as you watch each episode!

We invite you to follow along with us at home with a printable worksheet corresponding to the contents of each weekly episode. https://inmusic.to/bdhnff3m

Creator, writer, and host: Chris Miller
Director and editor: Paul Shaver
Producers: Max Ravitz and Chris Miller
Director of Photography: Paul Shaver
Music: Max Ravitz and Gunnar Haslam
Graphics and Animations: Ryan Ford
Special thanks to Ana Rome
Filmed on location at Schneidersladen Apotheke, Berlin"

🎛️ VAEMI : Kraakdoos / Cracklebox Atölyesi : Workshop #diy #diyprojects #gate

video upload by Vaemi

"Kraakdoos (aka Cracklebox), 1970’lerde Michel Waisvisz tarafından tasarlanan deneysel bir elektronik müzik aletidir.
Bu cihaz, parmak uçlarınızla devreyi tamamlayarak ses üretmenizi sağlar — her dokunuş, farklı bir ton, şiddet ve karakter yaratır.
VAEMI’nin modern tasarımıyla yeniden hayata geçen bu versiyonda:
• Transformatör izolasyonlu line çıkış,
• Dahili hoparlör ve harici çıkış seçeneği,
• LM709 op-amp tabanlı analog devre,
• 9V pil ile çalışma gibi özellikler bulunur.
Resimde gördüğünüz bu synthesizer’ın tüm PCB ve elektronik bileşenleri size atölye ücreti dahilinde eksiksiz bir şekilde sağlanacaktır. Derse yanınızda hiçbir şey getirmeden gelmeniz yeterlidir. Lehim kalemi, lehim, pasta, hoparlör, pil gibi gerekli malzemeler de tarafımızdan sağlanacaktır. Daha önce birkaç kez lehim yapmış iseniz bu dersler tam size göre olabilir. Dersin sonunda birleştirdiğiniz synthesizer’lar sizlerin olacaktır. Dersin başında size bütün elektronik bileşenler teslim edilecek ve bir takım şema ve synthesizer’ımız ile ilgili notlar dağıtılacaktır. “Elektrik nedir?”, “Kullanılan elektronik malzemeler ile ilgili temel bilgiler”, “Şema okuma” gibi giriş konularından sonra synthesizer üzerinde bölüm bölüm, her bölümün nasıl çalıştığını anlayarak adım adım ilerleyeceğiz. Dersin sonunda ise hep beraber synthesizer’larımızı çalıyor olacağız.
Katılımcılar, atölye süresince kendi Cracklebox’larını üretecek, cihazın elektronik yapısını öğrenecek ve sonunda kendi ürettikleri enstrümanı evlerine götürecekler. 🎶
📩 Kayıt & bilgi: @vaemisynth"

Googlish:

"Kraakdoos (aka Cracklebox) is an experimental electronic musical instrument designed by Michel Waisvisz in the 1970s.
This device allows you to produce sound by completing the circuit with your fingertips — each touch creates a different tone, intensity and character.
This version, revived with VAEMI's modern design, features:
• Transformer-isolated line output,
• Internal speaker and external output option,
• LM709 op-amp based analog circuit,
• 9V battery operation.
All PCB and electronic components of the synthesizer you see in the picture will be provided to you as part of the workshop fee. You just need to come to the lesson without bringing anything with you. We will also provide the necessary materials such as a soldering iron, solder, flux, speaker, battery. If you have done a few soldering jobs before, these lessons may be perfect for you. At the end of the lesson, you will have your assembled synthesizer. At the beginning of the lesson, you will be given all the electronic components and a set of schematics and our synthesizer. Relevant notes will be distributed. After introductory topics such as "What is electricity?", "Basic information about the electronic materials used", and "Reading schematics", we will proceed step by step on the synthesizer, section by section, understanding how each section works. At the end of the lesson, we will all be playing our synthesizers together.
During the workshop, participants will build their own Crackleboxes, learn the electronic structure of the device, and finally take home their own instrument. 🎶
📩 Registration & information: @vaemisynth

Ensoniq Fizmo Transwave Digital Synthesizer

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

via this Reverb listing

"Excellent Fizmo ready for a new home. Plays great with excellent feel synth action keys. Serviced a couple years ago, this board has many years of life ahead of it. All knobs respond to fine control, and input/output is clear.

Unit comes with PSU and manual."

CLICK FOR MORE »

Ensoniq FIZMO

Note: links to listings 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.

"In excellent condition and fully functional. Most importantly it has had the essential regulator modification. The instrument has been well looked after, having been kept in a non-smoking and pet-free home studio.

The synth comes with the original user's guide and a suitable UK mains power adapter. If you intend to use it outside the UK you will require a 9VAC 1.3A adapter for your local mains voltage.

Ensoniq's swansong, the FIZMO is an incredibly rare and highly sought-after 48-voice synthesizer which uses 2nd-generation Transwave technology to create very organic sounds unlike any other synth available. The top panel is festooned with realtime controls for many of its features, including the unique and quirky 'F I Z M O' knobs which alter various parameters per patch. It is most revered for its ability to create immense textures and soundscapes, often from just a single note.

For deep diving using a computer, there is a reasonably priced Mac / Windows application available called Fauxmo which is a standalone editor / librarian GUI. It edits the instrument via MIDI in real time."

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Yamaha S90 88 Key Synth with AN+DX boards

Note: links to listings 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.

"S90 Synthesizer. 88 Weighted Keys + After touch. AWM Synthesis. Has the sought after PLG150-DX (DX7) and PLG150-AN (Analog modelling) Boards Fitted. Comes with manuals and CD for the S90 and manuals for the plug in boards. Smart media Memory card fitted. Dust cover included. Excellent condition. Makes a first class Midi controller. Includes Swan Flight case. Home use only."

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Synthesizing with Moog | Lesson 2: Dynamics

video upload by Moog Music

Synthesizing with Moog

"In the second episode of Synthesizing with Moog we dive deep into this question to understand how a synthesizer creates individual notes and how you can articulate them. We look at circuits like the Voltage-Controlled Amplifier and Envelope Generator and explore further dimensions of expression. What makes an instrument an instrument? Is it in the tactile control you have as you play the instrument and the ways you can articulate its sound?

Written, hosted, filmed, and produced by our team of electronic musical instrument experts, this new seven-part educational video series makes learning the fundamentals of synthesis accessible, engaging, and inspiring for anyone curious about science, music, and how the two worlds converge. We set out to create a series that brings you as much technical knowledge as it does entertainment and joy as you watch each episode!

We invite you to follow along with us at home with a printable worksheet corresponding to the contents of each weekly episode. https://inmusic.to/bdhnff3m

Creator, writer, and host: Chris Miller
Director and editor: Paul Shaver
Producers: Max Ravitz and Chris Miller
Director of Photography: Paul Shaver
Music: Max Ravitz and Gunnar Haslam
Graphics and Animations: Ryan Ford
Special thanks to Ana Rome
Filmed on location at Schneidersladen Apotheke, Berlin"

Synthesizing with Moog | Lesson 1: Listening

video upload by Moog Music

Synthesizing with Moog

"'Synthesizing with Moog' invites you on an enlightening journey that answers a complex question: how exactly do synthesizers work? https://inmusic.to/bdhnff3m

In this first episode we go back into twentieth century history to understand the origins of electronic music, discussing concepts like modular design and voltage control to learn how they combined to make the synthesizer instrument we know and love today. We then pose some questions to try and understand how listening works. How is sound created in the air? What does a speaker do and how does a synthesizer control it? How does the ear work? And finally, how do our brains perceive the sound around us? Listening, after all, is the foundation of any musical practice.

Written, hosted, filmed, and produced by our team of electronic musical instrument experts, this new seven-part educational video series makes learning the fundamentals of synthesis accessible, engaging, and inspiring for anyone curious about science, music, and how the two worlds converge. We set out to create a series that brings you as much technical knowledge as it does entertainment and joy as you watch each episode!

We invite you to follow along with us at home with a printable worksheet corresponding to the contents of each weekly episode. https://inmusic.to/bdhnff3m

Creator, writer, and host: Chris Miller
Director and editor: Paul Shaver
Producers: Max Ravitz and Chris Miller
Director of Photography: Paul Shaver
Music: Max Ravitz and Gunnar Haslam
Graphics and Animations: Ryan Ford
Special thanks to Ana Rome
Filmed on location at Schneidersladen Apotheke, Berlin"

Mother Global Settings Editor for the Moog Grandmother and Matriarch by DIRE Studio

via DIRE Studio

"The proper Grandmother and Matriarch editor has landed.

Mother Global Settings is an intuitive editor for Moog's Grandmother and Matriarch synthesizers. Sporting a 500-series rack inspired control-per-function interface, it's a huge improvement over the quirky global settings editing method of these instruments.
For Mac and iPad.

Supports the creative flow.

Each setting is accessible with two clicks/taps at maximum, allowing you to concentrate on creating your music. Actual values are instantly visible on the screen, which may also prevent a disaster by letting you see output voltage levels. And we have added octave buttons to easily set and check keyboard transposition, as well as a sequence selector override for the Matriarch, letting you quickly switch to any sequence — not just adjacent ones.

Expanded control panel.

Separate items for oscillator frequency ranges on the Matriarch. Fine grained control over MIDI output and local control. Extra glide toggle and arp/seq gate length settings managed by the app. And a panic button in case the synth goes rebel.

Presets.

Save all global settings, as well as our extra settings, into files that you can archive with other project material or share with others. Quickly recall them when needed. And of course you can reset all settings to factory defaults.

Keyboard control.

Keyboard shortcuts for settings affecting synthesizer parameters that you may wish to change during live performance or recording: Gate Length, Swing, FW/BW End Note Repeat, Allow Seq Random Repeat, Delay Seq Change, Pitch Variance, Gated Glide, Legato Glide, Paraphonic Unison, Update Unison on Note-Off, Noise Filter Cutoff, Delay Filter Brightness and Multi Trig.

Equally at home on stage and in the studio.

Direct USB connection for the fastest operation and complete auto-detection — perfect for live performance. 5-pin MIDI support for connecting via MIDI interfaces — and even through MIDI routers — allows you to integrate the app into complex studio setups."

Oxford Synthesizer Company OSCar 37-Key Analog Monophonic Programmable Music Synthesizer SN 0115

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

via this Reverb listing

"Serial number 0115 (written in blue Biro pen on the wooden underside of the instrument).

This is one of the first OSCar synthesizers made and it has great provenance. On 26 April 1984, I visited the designer of the instrument, Chris Huggett, at his apartment in Headington, Oxford. He demonstrated the synth and said, “Take it home and, if you like it, send me some money”. So I did … and this is the instrument that is being sold now. I took it back to him a few months later and he fitted the MIDI board.

The instrument has recently been restored by Andrew Jury (Synth Prof). All electrolytic capacitors have been replaced, ribbon cables and headers have been replaced, the battery is new, mains switch has been replaced, keyboard busbar and spring contacts cleaned and polished and much, much more. Consequently, the instrument is in full working order."

CLICK FOR MORE »

Introducing the Sequential Fourm

video upload by Sequential

Update: the first user videos added below. Note: this post is pinned on top, see below for new posts going up throughout the day.]

"Fourm 4-voice analog synth with polyphonic aftertouch

Fourm is a compact analog synthesizer that invites you to play, shape, and perform with unprecedented expression. With its legendary Sequential tone, hands-on modulation, and uniquely responsive Tactive™ keybed, Fourm is a creative partner helping to bring your musical ideas to life.

Synth sounds and drums exclusively by Fourm. Composed by Peter Dyer."

https://sequential.com

See the dealers on the right of the site for availabily.

User videos:



Playlist:

1. The new Sequential Fourm in 60 seconds! #analogsynth #synth - Available at Signal Sounds
2. Sequential FOURM -- J3PO demo & overview
3. Sequential Fourm Analog Synth INHALT Demo & Discussion
4. Sequential FOURM Review — Classic synth sounds in a small package! - BoBeats
5. Introducing the Sequential Fourm Synth | First Look & Demo - Gear4music Synths & Tech
6. Sequential Fourm: Poly aftertouch, stacked waves, expressive arps – First look and sound demo - MusicRadar Tech
7. Sequential Fourm Performances & Overview - Sweetwater Soundcheck
8. SEQUENTIAL FOURM: the synth we’ve ALL been waiting for? - Projet Home Studio

Press release and pics follow:


Sequential Introduces Fourm: A Four-Voice Analog Synth with Polyphonic Aftertouch

A New Fourm of Expression

San Francisco, CA — September 23, 2025 — Sequential has announced the release of its most affordable, synthesizer to date. Fourm is a compact, 100% analog instrument that redefines expressive electronic performance. With its warm, organic tone, hands-on modulation routing, and a uniquely responsive polyphonic aftertouch keyboard, Fourm is ready to bring your musical ideas to life.

At its core, Fourm delivers four analog voices of genuine Sequential sound, derived from the legendary Prophet-5 — complete with dual oscillators, a classic 4-pole lowpass filter, and envelope curves modeled after the 1978 original. The result is unmistakable Sequential warmth and punch, now with overdriven feedback for a performance-ready edge.

For the first time in 40 years, Sequential has returned to polyphonic aftertouch. The team developed the new Tactive™ slim-keys poly AT keybed to work in concert with Fourm’s analog synthesis engine. Every element was co-designed and precisely calibrated to unlock new levels of expression, enabling a deeper connection to our signature sound that no off-the-shelf keybed could deliver. The result is a more expressive bond between player and instrument, energizing new modes of creativity.

“Wowww holy smokes: this thing sounds and feels amazing,” said Bryn Bliska, (keyboards for Chappell Roan, Maggie Rogers, Jacob Collier). “The polyphonic aftertouch is seriously so fun… Sequential nailed it.”

“We’re so excited to bring this innovative all-analog keyboard into the world,” said David Gibbons, Sequential CEO. “At a price-point that most people expect to pay for a monophonic synth, we think this product will invite legions of musicians who have longed for the magic of polyphonic analog sounds to start their journey of discovery with Sequential.”

Notably inspired by the Pro~One, Fourm’s top-panel modulation matrix puts deep sound design at your fingertips—no menu diving required. Modulation sources and destinations are clearly labeled, connections are made with a button press, and color-coded indicators make even complex routings easy to manage.

With its compact footprint, professional-grade build, and a sound engine rooted in Sequential’s most iconic instruments, Fourm is a powerful new voice in analog synthesis.

About Sequential
Sequential has been at the forefront of synthesizer innovation since 1974, creating instruments that inspire musicians and shape the sound of modern music. With a legacy built on the iconic Prophet synthesizers, Sequential continues to push the boundaries of sound design with cutting-edge technology and exceptional craftsmanship.

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Legendary ARP Pro Soloist Signed by Genesis Keyboardist Tony Banks: raffled at Machina Bristronica!

video upload by Alan R. Pearlman Foundation

"The Alan R. Pearlman Foundation is proud to announce a once-in-a-lifetime opportunity to own a meticulously restored vintage ARP Pro Soloist, personally signed by Tony Banks, legendary keyboardist of Genesis.

The raffle will be held at the electronic music festival Machina Bristonica in Bristol, UK September 27-28th. Raffle tickets are £ 20 GBP for a single ticket and bundled options will be available as well. The raffle winner will be announced one hour before the event closes (17:00). The Winner is responsible for shipping or pick it up and take it home.

This iconic synthesizer—famous for its expressive presets and aftertouch performance—was a favorite of Banks during the band's most groundbreaking era. Now, one lucky winner will take home this historic instrument, lovingly restored and authenticated, while supporting the foundation’s mission to preserve the legacy of synth pioneer Alan R. Pearlman and inspire future generations of musicians and engineers.

For the complete press release, please subscribe to our newsletter! https://alanrpearlmanfoundation.org/s..."