Exploring the Sequential Fourm: an underrated synth gem

video upload by Signal Sounds

"Our good friend The Unperson returns to the Signal Sounds channel to put the Sequential Fourm through its paces.

Fourm offers the classic sound and quality of Sequential at an unprecedented price point. Drawing on some of the best synths of all time, this compact analogue powerhouse boasts some fantastic features like poly aftertouch and a flexible arpeggiator/sequencer.

Buy here: https://www.signalsounds.com/sequenti..."

SEQUENTIAL FOURM: 4 voces analógicas para recrear un clásico

video upload by Hispasonic

Click CC for subtitles at the bottom of the player once the video starts.

Video descpription in Googlish:

Instead of a traditional review of the Sequential Fourm, we decided to take a different approach: putting it to work on a specific track. And not just any track: "Fade to Grey" by Visage—an absolute classic of 1980s British synth-pop. Every melodic and accompanying track you’re about to hear was created exclusively using the Fourm, starting from factory sounds (drawn from the approximately 300 initial presets) with only minimal tweaks. The only element not provided by the synth is the drums: an AI-generated Roland CR-78-style pattern, occasionally reinforced with a kick and snare from Logic’s sound library.

Along the way, Pablo demonstrates how to truly harness the power of a modern polyphonic analog synthesizer: polyphonic aftertouch (key for the lead vocal line, where some notes come alive while others fade out completely), intense mixer feedback (ranging from subtle thickening to nonlinear behavior with "ghost" harmonics), audio-rate filter modulation from Oscillator 2 (adding anything from brightness and vocal-like character to total sonic breakdown, depending on the intensity), glide for creating transition sweeps, and the LFO in random mode feeding the filter to ensure every note sounds unique.

We also cover specific recording techniques: layering basslines via MIDI using two different sounds and panning them; doubling hand-played pads so that the two takes aren't identical; and recording a MIDI pattern to free up both hands, allowing you to perform real-time timbral tweaks—adjusting the filter, resonance, and modulation intensity—during the actual audio recording.

📝 A quick refresher on the Fourm: a compact 4-voice analog synthesizer featuring two VCOs per voice, a 4-pole low-pass filter derived from the Prophet-5, one global LFO, two ADSR envelopes, a mixer with feedback capabilities, no internal effects, a mono output, a 37-key "slim" Tactive keyboard with polyphonic aftertouch, and a modulation matrix—inherited from the Pro-1—that is directly accessible right on the front panel. 00:00 Original vs. Fourm Version
00:24 Intro
01:35 Fourm Features
03:34 Polyphonic Aftertouch
04:57 "Fade to Grey" Intro
07:07 Bass
08:34 Chords
10:17 Sweep
12:32 Melody
18:50 "Clavi" Sound
19:34 Drums
20:39 Full "Fade to Grey" Version

Sequentix MKS-8E Envelope curves

video upload by sequentix

"Details of the new envelope features on our CPU upgrade for MKS-80
(Next time I'll try to pay more attention to focus and audio levels)"

Ambient with Randomized Samples and Synth Pads | Sinking Stone 2026-04-28 by atnr

video upload by atnr

"An ambient piece created with Ambient Engine ( https://store.atnr.net/ambient-engine... ) and the ‪@SequentialLLC‬ Prophet-10.

Ambient Engine loads samples of ice sounds and human voices and plays them while randomly changing the playback position. The MicroLoop effect is also applied.

On the Prophet-10, synth pads are performed with reverb through the Strymon blueSky.

On the ‪@buchlausa‬ Music Easel, the bass is played using a modulated sound processed with reverb and filtering through the ‪@strymon‬ NIGHTSKY."

J3PO // All The Things You Are

video upload by Julian "J3PO" Pollack

"Julian 'J3PO' Pollack performs an arrangement of the classic standard 'All The Things You Are' by Jerome Kern & Oscar Hammerstein II, from the musical Very Warm For May (1939). Everything was recorded live, in one take, with no overdubs.

Gear used: Arturia Keystep Pro (sequencing), Roland TR-8s, Minimoog, Sequential Prophet 6, Groove Synthesis 3rd Wave 8M, Yamaha Acoustic Upright Piano."

Listen to Julian's new album: https://lnk.to/soulandcircuitry

SynthFest France 2026 Presentations

video uploads by SynthFest France

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Playlist:

1. Sequential Fourm - Chris Calcutt | SynthFest France 2026
2. Oberheim TEO-5 - Chris Calcutt | SynthFest France 2026
3. Fred'S Lab Manatee | SynthFest France 2026
4. Morphor Echon 6 | SynthFest France 2026
5. SynthR | SynthFest France 2026
6. Kodamo Mask1 EX MK2 - Cutting Edge | SynthFest France 2026
7. Kiviak Instruments WoFi | SynthFest France 2026
8. Korg Kronos 3 - Michel Deuchst - Kurt Ader - Michael Geyre | SynthFest France 2026
9. Yamaha MODX M8 - Cyril Colom - Didier Davidas | SynthFest France 2026
10. Larix Elektro | SynthFest France 2026
11. PPG Modulars - Liquid Sky Eurorack case - Paulee Alex Box | SynthFest France 2026
12. SynTesla 5U Systems first demo | SynthFest France 2026
13. XOR Electronics NerdSEQ | SynthFest France 2026
14. Theresyn - Cynthia Caubisens - Nori Ubukata | SynthFest France 2026
15. Roland TR-1000 | SynthFest France 2026
16. Eowave Portail & Redondance | SynthFest France 2026
17. Embodme Erae 2 | SynthFest France 2026
18. FCPRO.Audio Mixthesizer - Matrix - Sumpressor | SynthFest France 2026
19. ACE Studio 2.0 - AI | SynthFest France 2026
20. BEATSURFING | SynthFest France 2026
21. BLEASS | SynthFest France 2026
22. Heritage Modular - Heritage Synthesizers - Live coding | SynthFest France 2026
23. Bitwig Studio & Bitwig Connect | SynthFest France 2026

BOARDS OF CANADA - Under the coke sign (COVER - Prophet REV2 & Elektron Analog Heat+FX)

video upload by nicola neeco

"Gear & Setup
Recreating Boards of Canada’s 'Under the Coke Sign' using the Sequential Prophet Rev2 and Elektron Analog Heat+FX. (Patches made from scratch)
Two custom patches on the Prophet: left hand for the bass line; right hand leverages the chord memory function: hold desired notes and hit unison to trigger full chords with a single finger.

Processing & Sound
The Analog Heat+FX provides warm saturation, EQ shaping, and the warble module, which introduces the characteristic background tape noise heard throughout."

Fading away - ambient electronic meditation 06

video upload by RandomVoltage

"Ambient electronic Meditation 06
'Fading away'

Thanks for watching -
hope you enjoyed this video- different style than usually- let me know what you think..

Setup

Arturia Minifreak for pad sound
Sequential Fourm brass lead

Efx #eventide blackhole #strymonbluesky #strymonelcapistan #strymondeco

Recorded live on Zoom l6max

All video filmed on iPhone 12pro max"

GreyScale-SwitchStatement #renoise #polysequencer #duos #greyscale #switch

video upload by plantssystem

"GreyScale 'SwitchStatement' — a pulse shaped by Renoise logic and Prophet‑5 warmth.

Tracker‑precision triggers shifting states, while the analog core breathes subtle motion into every step.

A clean switch, a new reaction — GreyScale hybrid engine in motion."

Super Mario Bros. Theme — Reimagined on Vintage Synths

video upload by Anthony Marinelli Music

"In this 90-second performance, Anthony Marinelli recreates the legendary melody (originally composed by Koji Kondo) using his collection of rare vintage analog synthesizers in a one-of-a-kind orchestration. No computers, no plugins, just pure hardware (with a touch of bit-crushing) and hands-on performance.

Watch as layers of classic synths bring new life to one of the most recognizable themes in video game history, with quick cuts showcasing the instruments behind the sound.

🎹 100% vintage synths
🎮 Music only, no talking
⏱️ 1 minute 30 seconds of pure analog nostalgia
If you love retro games, classic sound design, or analog gear, this one’s for you!"\

🎛️ Think Like a Synth Learn the exact method I've used for decades on hit records & films
👉 https://anthonymarinellimusic.com/pro..."

Chords in the void

video upload by MIDERA

Sequential Prophet 10 #sequential
Chase Bliss Thermae #chasebliss
Native Instruments RAUM #nativeinstruments

Sequential Tempest Analog Synthesizer + Drum Machine SN 03744

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via this listing

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Mike303 - First Encounter ( Prophet5 OB XA Matrix6) Synthesizers

video upload by SUPERFUNK

MIKE303 - John Carpenter (Synthesizers Msq 700 Prophet 5 Tr808 Matrix6 Obxa)

video upload by SUPERFUNK

© 2026 Superfunk exclusively licence to Wagram Music S.A.S.| Balagan Music

https://www.discogs.com/artist/8006-Superfunk

Sequential Take 5 44-Key 5-Voice Compact Polyphonic Synthesizer SN 00531

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via this Reverb listing

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🎹 LYLE MAYS and his world with Keyboards, Synthesizers and Piano 🎹 (1985)

video upload by JAZZ WINDOW

"🎹 LYLE MAYS and his world with Keyboards, Synthesizers and Piano 🎹
(1985) - Jazz Window TV: jazzwindowtv.blogspot.com"

Late night relaxation with #sequential Fourm & #arturia Minifreak

video upload by RandomVoltage

"Late night relaxation

Improvisation with two synthesizer

Arturia Minifreak - pad sound- eventide blackhole
Sequential Fourm - lead - strymon elcapistan, bluesky and deco

Recorded on Zoom livetrak l6 max"

A Deep Analysis of the Publison DHM 89 B 2 and the Prophet 5

video upload by foleytronics fx repair

"Peter's demo of the Publison DHM 89 B 2 and the Prophet 5."

Lo-Fi Ambient Electronica with Prophet-10 and OP-1 field | Cape at Sunset 2026-04-17 by atnr

video upload by atnr

"An ambient electronica piece for sunset, blending lo-fi synth tones and voice.

Created with ‪@SequentialLLC‬ Prophet-10, norns shield, and ‪@teenageengineering‬ OP-1 field.

On the Prophet-10, the signal runs through GENERATION LOSS MKII for tape style distortion, then through ‪@strymon‬ blueSky with reverb.

On the norns shield, Graintopia is used to record a short humming phrase and process it with granular synthesis. The output runs through NIGHTSKY with reverb and filtering.

On the OP-1 field, synth is performed and processed through ‪@ChaseBlissAudio‬ GENERATION LOSS MKII for tape style distortion, then through blueSky with reverb."

Intergalactic Commute (Mother-32 - Prophet 6 - Minitaur)

video upload by lucafrancinimusic

"A jam with Intellijel Metropolix and Moog Mother-32 became a full track. A few patch notes in the video. Thanks for watching!"

Sequential Multi-Trak 61-Key 6-Voice Polyphonic Synthesizer

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via this Reverb listing

Additional SYNTH CITY Listings

"The Sequential Multitrak (released in 1985) is a six-voice analog synthesizer notable for combining true analog sound with early digital control.

Each voice has a CEM3394 synth-on-a-chip, offering a single oscillator, sub-oscillator, noise source, and resonant low-pass filter. It was one of the first affordable synths to feature a built-in sequencer and MIDI implementation, making it popular for both studio and live use.

The Multitrak’s panel and parameter editing system allowed deep sound design, though programming could be a bit tedious. Its warm, punchy tone and distinctive Sequential character make it a cult favorite among vintage synth enthusiasts today.

This one works like a charm and has that analog warmth you've been looking for in a polysynth."

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