MATRIXSYNTH: Monday, March 20, 2023

Monday, March 20, 2023

Alternative Firmware ROM for the Yamaha DX9 Brings it Closer to the DX7

You might remember this video from Espen Craft on how the Yamaha DX9 is essentially a 4-Op DX7. The DX7, of course, is a 6-Op FM synth. ajxs on Github is working on a ROM that will update the DX9 into a 6-Op synth a pitch envelop generator to more closely match the DX7. Details follow:

"DX9/7 is an alternative firmware ROM for the Yamaha DX9 synthesiser. Its aim is to uplift the DX9's functionality to more closely match that of the DX7. It restores features that were intentionally restricted in the firmware, such as increasing the operator count to six, and adding a pitch envelope generator. This ROM makes the synth properly patch-compatible with the DX7.

This is not a patch for the existing DX9 firmware, it is an entirely new firmware ROM. It has been assembled from the original binary, together with code from the DX7's V1.8 ROM, as well as new code written from scratch.

New Features:

Makes the DX9 able to play DX7 patches.
Restores the use of all six operators.
The synth is now sensitive to the velocity of incoming MIDI notes.
Implements the DX7's pitch EG.
Implements DX7 style operator scaling.
Implements DX7 style portamento/glissando.
What is the current status of the ROM?

This firmware is currently highly experimental. Although the main features are fully working, testing and bugfixes are ongoing. Installing the firmware for everyday general use is currently not recommended. As additional testing is performed this will improve. If you do intend to use the ROM despite this warning, please refer to the section on reporting issues. Development, and testing of the cassette interface is ongoing, and at this point it should only be used for testing purposes.

The risk of any harm coming to your DX9 as a result of using this ROM is incredibly, incredibly small, however the developers take no responsibility for any issues that may arise as a result of using this alternate firmware. All care has been taken, and considerable testing has been performed, however the developers accept no liability for any issues.

What is the current status of the ROM?

This firmware is currently highly experimental. Although the main features are fully working, testing and bugfixes are ongoing. Installing the firmware for everyday general use is currently not recommended. As additional testing is performed this will improve. If you do intend to use the ROM despite this warning, please refer to the section on reporting issues. Development, and testing of the cassette interface is ongoing, and at this point it should only be used for testing purposes.

The risk of any harm coming to your DX9 as a result of using this ROM is incredibly, incredibly small, however the developers take no responsibility for any issues that may arise as a result of using this alternate firmware. All care has been taken, and considerable testing has been performed, however the developers accept no liability for any issues."

See for additional details.

You can find additional 4-OP DX9 posts including demos here.

Hear the Futuristic Synth Everyone's Talking About - Osmose Sound Demo - No Talking

video upload by Perfect Circuit

"Several years in the making, Expressive E's Osmose is one of the most unique keyboard synthesizers available. Using a cutting-edge keyboard design, it can detect multiple levels of pressure, left and right movement, and more...creating a tremendously expressive playing experience. Paired with the onboard Eaganmatrix sound engine, you'll get everything from classic synth pads to uncanny physical-modeled tones—and frankly, it'll make you re-think the way you play a keyboard altogether.
Plus, it makes one heck of a MIDI controller, complete with MPE capability. If you need a futuristic synthesizer or controller, there's simply nothing else like Osmose.

If you like to learn more about this amazing synth check out our article

Want to add it your cart, head here:"

Korg 01W - "100 Evolving Pads" Soundset

video upload by LFOstore

"Korg 01W '100 Evolving Pads' sound bank 100 new patches!


Korg's Ai2 synthesis system spawned a whole line of brilliant pads and textures filled with depth and warmth from the synths in this series, but I consider the korg 01/W to be the foremost among them."100 Evolving Pad" 100 new sounds using Wave Shaping.

100 presets with type:

Evolving Pad
Ambient SFX
Wave Shaping

Downloads are available as sys ex (.syx) files in bank B.
bank A loads the original sound

The demo tune was recorded in real time and does not contain external effects.

Made by Alexander Kav"

love on a real train // mc-707 cover

video upload by geomagnetics

"This is a cover of the great Tangerine Dream song. I wanted to stick close to the original version while keeping it strictly on the MC-707 and not use external gear. I've loved this song for as long as I can remember but covering it gave me a whole new respect for what they did in those studios before computers and grooveboxes.
I sequenced it all except for a few sweeps and fades which ends up pretty boring to look at. So I threw in some holiday footage"

1979 DSS Modes 2

video upload by Todd Barton

"Couldn't keep my hand and mind off of this. Enjoy dual sequencing of audio (top half) and CV (bottom half).
Now back to work . . .

My Patreon"

Tiptop Z DSP feedback

video upload by Todd Barton

"A simple feedback patch to listen to what is inside the various reverb algorithms of the Halls of Valhalla card for the Tiptop Audio D-ZSP Digital Signal Processor. Of course you are just hearing the same Decay/Tone/Chorus knobs setting for each iteration. So much more possible by playing the knobs. And, of course, more various sonic universes with the other cards.

My Patreon:"

Macbeth Micromac D

via this auction

"3 oscillator semi-modular synth, complex modulation capabilities, MIDI & CV control.

Probably no other monophonic analog synth has this amount of sound bending capabilities at your fingertips on an ultra-compact footprint. Directly prepatched and switchable are:

VCO2 synchable to VCO1
VCO3 can modulate either VCO2 (only) or VCO1 + 2
VCO3 can modulate the filter
VCO3 can be taken out of the audio path completely, becoming an 'invisible' source for modulation only
the filter envelope (VCF) can modulare VCO2 ('sweep VCO')
VCF has two modes of keytracking
both LFOs can control VCOs AND filter cutoff at the same time and with independent settings
LFO1 can do S&H by sampling LFO2 (making them interdependent) or the noise generator
oh, there actually is an "OSC4" which is white noise (with its own level control), in addition to the white noise setting on VCO3 and the white noise setting on LFO2. That's 3 noise generators in just one synth.
glide function
VCA switchable positive / negative
envelope trigger switch
In addition, there are the patch points which add PWM modulation, external audio insert points, individual VCO outs, V-gate in on LFO1 +++

Fully functional. Great overall cosmetic condition. Very few signs of use. Some hairline scratches around the sides, particularly the front. Hardly visible – see photos.

In Europe, this comes with a 12V AC 1A adapter (EU-style plug – 230V). Not switchable! Will NOT include in North America / Japan sales to save on shipping weight. You'll need to buy one that works at your local voltages."

E-mu Systems Emulator 1 SN 314

via this auction

This one was spotted by M Me.

Googlish translation on condition from the listing:

"The instrument really looks like new, a real museum piece with a legendary history.
About 500 pieces were produced worldwide, it is rumored there are currently about 50 copies left in the world."

Roland Jupiter 6

via this auction

Sonicware Liven XFM Groovebox Desktop Synth w/ Limited Edition Case

via this auction

Space FX sound with Sequential OB-6 (no talking)

video upload by Mr. Card

"Check out my private collection of Sweet Sounds dedicated to Sequential OB-6:"

Sequential OB-6 & Prophet 6 - Pixel Notes Music Vol. 2

video upload by Pixel Notes Music

00:00 - Intro
00:11 - Anthropic [OB-6]
06:32 - Neural Pathways [OB-6]
12:04 - Unweaving [OB-6]
17:50 - Failing Joints of the Machine [Prophet 6]
22:15 - Exponential [Prophet 6]
24:18 - Catching the Wind [Prophet 6]
31:17 - Shipwreck Music Box [Prophet 6]

All songs and artwork created by Pixel Notes Music.

LARK Digitakt and Modular Synthesizer Performance // Track Breakdown

video upload by Patchwerks

"Seattle based artist Lark performs and breaks down a track made with an Elektron Digitakt and a Mutable Instruments themed modular synthesizer.

Check out the Digitakt here:
Check out the some fresh Mutable Instruments remakes by After Later Audio here:
Video by: Matthew Picora (@EZBOT_)"

Jam - Novation Summit - Exploring Split Mode #notalking #synthesizer

video upload by HansiLa

"A one-take jam with the Novation Summit in split mode.

Whipping something quick with a latched arp on part B and messing around with notes on part A. There may need to be a longer part 2 as there's some fun to be had with the onboard effects and mod matrix. Despite just scratching the surface, I love how easy and quick it is to drum up great sounds on this synth.

As always, the goal with multiple synths on this channel is to see how each instrument sounds with the other and to improve my key and programming chops. With that in mind... there is minimal processing of these sounds. There's no compression or EQ on this piece."

E-Ther + Mopho (my first track made with a theremin)

video upload by Musical Miscellany (Poorness Studios)

"I recently posted an unboxing video of this MIDI theremin [posted here] so I decided to pair it with my Mopho and create a track. NOTE: I put all the patch bank/numbers on the screen. However, I have the Mopho Keyboard patches loaded on my Mopho module so they may be slightly different than a factory Mopho."

See the PeacockMedia label below for more.

1979 DSS Modes

video upload by Todd Barton

"Just got this 1979 Modular module, the Dual Sequential Switch and am having a blast! Here's just a simple yet effective fun patch to feature the Mode settings. Enjoy!

My Patreon:"

Bidirectional sequential switches for audio and CV

The DSS is intended as a companion for the Buchla 245/246 sequencers and other "quad" modules in Buchla format such as the 281 and 292. New possibilities for performance and composition arise from the ability to dynamically route multiple sources to multiple destinations without repatching.

BUILD OPTIONS. Choose from one of three build options. See the images above for illustrations of each build type. On the standard build the main I/O uses Tinijax on the top half and banana jacks on the bottom half. Custom builds with all Tinijax or all banana jacks for the main I/O are also available. If you want a custom build, please send an email with your build preference after placing your order. If no preference is stated your module will be supplied as a standard build.

The main I/O is bidirectional, meaning that the module works as a 4:1 multiplexer or a 1:4 demultiplexer. Patch up to four signals to the inputs labeled 1-4 and they will be sequentially routed to the common I/O jack. Alternately, patch one signal source to the I/O jack and it will be sequentially distributed to the 1-4 jacks.

Each half of the module has its own independent loop length (from 1 to 4 steps) and sequencing mode: forwards, backwards, forwards and then backwards (pendulum), or random. The SC (Step Change) output generates a trigger whenever the sequence length is changed, which is useful for synchronizing the upper and lower halves of the module or communicating state changes to other modules. The analog CV addressing input (ADDR) bypasses pulse-based control and allows an external CV source to select which step is active, similar to the "analog" CV input on the Buchla 245/246.

These extensive control and sequencing options make the DSS one of the most fully-featured sequential switches available in any modular format. Every aspect of the switching schema is accessible, facilitating previously inaccessible patching opportunities.

Tech Specs

4:1 or 1:4 sequential switches for audio or CV

Variable sequence length (1-4 steps) with voltage control

Variable switching mode (forward, reverse, pendulum, random) with voltage control

VC step addressing via clock, direct selection, or external 0-10V CV

Extensive pulse I/O for synchronization with external modules

Extra Settings

RESET/TRIG switch toggle. By default, pressing the RESET switch returns the sequencer to step 1, but this switch can also be used as a manual trigger source. Press RESET for 5 seconds to toggle this setting. The SC LED will blink to confirm the change. Now when the switch is pressed the TRIG jack will be pulsed instead. The RESET and TRIG jacks still work independently. Press RESET again for 5 seconds to toggle the switch function back to a manual reset.

Manual step selection. Press the RESET switch and then turn the STEPS knob for manual channel selection. This works like the ADDR CV input but doesn't require external CV. Note that all trigger inputs (RESET, TRIG, and the four SELECT jacks) can still change which channel is active so this feature works best when those inputs are not being used.

Pendulum behavior. Press the RESET switch and then turn the MODE knob to change how the Pendulum mode behaves. There are four possible settings which correlate with the four F/B/P/R labels around the knob.

You can find additional details at

Eurorack setup is close to final form #3

video upload by Meska

"Another teste on the preticly finish eurorack setup !

top end note : Softpop2 (with many effect)
chord (kind of): plinky
low: Grendel Drone commander 2
drum&sample&glitch :LD3
mixing/compresion: eurorack & LD3
all in htis to OTO bim and bam

Thank you for watching.
My name is Meska of the statik collective . I've been making mostly "dark and expérimental" music for more than ten years now, i'v learn so much online, now it's time for me to share my knoledge, my exploration and this channel is a place to talk about the tools, sound design and techniques to make music with.

You can stream my albums and EPs at

If you'd like to support the channel​ consider buying music from bandcamp ;)"

Sequences running to the Cobalt and Microfreak by @nadiastruiwigh #shorts #synth

video upload by Synths & Machines

Modular synth jam by @ooramusic #shorts #synth

video upload by Synths & Machines

Patch from scratch with Dark Energy

video upload by Omri Cohen

00:00 - Introduction
00:51 - The setup
01:05 - Sequence with Ions
06:38 - Movement to the quantizer
08:38 - Sequence with Entropia
13:49 - Movement with Branes
17:46 - Modulation to the first voice
19:00 - Bass
23:14 - Another layer with a HP filter
24:46 - As a modulation source

Want to learn Modular Synthesis? have a look here -
Interested in more patching techniques and ideas? Have a look here -

Can Arturia's MiniFreak do Horror?

video upload by LeSynth

"I love the power and versatility of the little MiniFreak! In this short demo, I have a ridiculously-fun time creating a horror score featuring only sounds from the versatile French synth."

Sequential Pro 3 Multi-Filter Mono Synthesizer SN 01759

via this auction

Roland TB-303 Bassline SN 377000

via this auction

Guessing the last digit in the SN is a 0.

Bruel & Kjaer 2113 Audio Frequency Spectrometer

via this auction

Beautiful color.

See LMNC's video with several here.

Spectral Audio ProTone SN 960165

via this auction

"In 100% perfect working good condition.
The ProTone is an analog synthesizer with the ability to generate a wide range of sounds, from fat classic analog tones to exciting FX sounds.
The modulation system is incredibly unique and powerful, allowing for up to five modulation destinations to be set simultaneously.
The LFO waveforms feature six standard shapes, random, noise and external input as an LFO.
It's quite fascinating that it features an external input LFO and PAN.
You can create sounds that move fluidly between the left and right channels.
In the VCO2 section, you can use external input as a VCO.
This means you can use this unique modulation system as an effect processor and even combine it with VCO1.
The ProTone supports CV/Gate control as well.
CV/Gate can be switched between input and output modes using the internal jumper settings.
This unit is compatible with both 115V and 230V.
Currently, the voltage selector is set to 115V, and it is located inside the unit."


via this auction

"This unit is 100% perfect working. All Knobs, Keys are fully functional.
In EXCELLENT condition.
This unit is for 100Voltage. You may need a voltage converter to use it."

Vintage Moog Minimoog Model D 44-Key Monophonic Synthesizer SN 9800

via this auction

"Vintage Moog model D, real sound.

Fully serviced.

Nee grommets set for keyboard, alignment for keyboard, tuning and more to deliver the Moog in perfect working condition."

E-MU Systems XL-7 Command Station -- Xtreme Rom + ULTRA RARE Drum Rom SN 090101905

via this auction

"X-Lead + Drum ROMs INSTALLED!!!! XL-7 (yellow) and ultra rare PX-7 (grey) in the same device!!!!"

Black Corporation Kijimi 8-Voice Analog Synthesizer SN 1637

via this auction

"This is one of my favorite synths of all time and I suspect I will own one again in the future. I have also owned the Deckard's Dream and greatly prefer the Kijimi. It retains all the incredible MPE expression of the DDRM, yet extends the modulation possibilities vastly, has 4-pole filters, and is just generally more exciting if you ask me.

Check out Ricky Tines' video review." [posted here]

Alesis A6 Andromeda 61-Key Polyphonic Analog Synthesizer

via this auction

Access Virus B Desktop Synth Module SN E10002657

via this auction

Korg NTS-2 Oscilliscope Book & Kit

video upload by Korg

"The NuTekt NTS-2 is not just an oscilloscope, it can do much more including tuning and waveform generation. Here, one of our product specialists @talsounds builds & demo's the NuTekt NTS-2 combined with the volcafm. #nts2 #nts1 #build #tweak #patch #timelapse #synth #volca #korgsynth #synthjam #synthesizers #fyp #foryou"

Trogotronic i/1 Illuminator

video upload by trogotronic

NOTE: major flashing lights in this one.

"i/1 Illuminator demonstrating each light's response to a separate Audio Signal. i/1 may respond to any one of the following inputs at once:
1. C/V or Gate signal from Modular Synth
2. Audio Signal via Input Jack
3. Loud Sounds in the vicinity via built in microphone."

Drum machine, sequencer, synthesizer Yamaha QY70. Future garage.

video upload by Gosha Varin

Norand Mono - Firmware V2.0 - Expressive Controls

video upload by Norand

"This last video about Firmware V2.0 shows how to use and customize expressive controls.
I use the Erae Touch from Embodme to control Velocity, Aftertouch, Vertical and Pitchbend.
However Velocity and Vertical can be directly set on Mono.

0:00 - Intro
0:10 - Velocity
0:41 - Aftertouch
1:12 - Vertical
2:05 - Pitchbend
2:52 - Edit Velocity/Vertical"

Programming Prophet 5 Patch Into Memorymoog (by synthpro)

video upload by synthpro

"Hey Guys,
This is a video going over a Prophet 5 patch I have programmed into the memorymoog. This is a example of preset 3-6: Release-Repeat found in the Prophet 5.

NOTE: you may have to tweak the modulation amount and speed to get the results you are after, this can vary on Memorymoogs just a bit.

Thanks for watching!


Trying out Auza's Wave Packets, a crazy audio and modulation generator for Eurorack

video upload by Stazma

"More infos & affiliate links in the description // Support on Patreon to get samples from this session:

Today we chack out that very interesting module by Auza Audio: the Wave Packets!
It's a bit like one channel of a Buchla 281 has been cramed with TONS of features. Fully digital yet very analog in the way you interact with it.

Have fun!"

Also see: Auza Audio Wave Packets Module Test - MATTHS #shorts

Famous Synth Sounds - (12) Howard Jones New Song

video upload by SonicProjects


Famous Synth Sounds 12: Howard Jones New Song

Check the presented sound by yourself with the demo version linked above

Click on the BANK - LOAD button in the synth's grey top-bar
Load this bank: PROII_FAMOUS
Preset 22 Howard Newsong Perc
Preset 24 Howard Newsong Lead"

Monday Rave - Polyend Tracker

video upload by Polyend

"Get your dancing shoes and let's rave through the Monday!"

Roland JD-XA Demos & Tutorials by Kosmokatze

video uploads by Kosmokatze

Note two of the videos in the playlist above were previously posted (1 & 4). You can use the player controls to skip around.

Playlist at the time of this post:
1. Roland JD-XA | Demo / Ambient / Cinematic / Downtempo - Jam-Session | Part #1 fav. Sequences
2. Roland JD-XA / JD-XI Tutorial for Beginners - #1 Basic Riser Effect #synthesizer #roland
3. Roland JD-XA | Demo / Ambient / Cinematic / Downtempo - Jam-Session | Part #2 fav. Sequences
4. Before you buy a used / second Hand Roland JD-XA //Service Check\\ Test Tutorial - no Tools needed
5. Roland JD-XA | Beginners Tutorial #2 Creating & Sequencing Analog Bass in TB 303 Style in 2 Minutes

Eden Grey - live @SUPERBOOTH22

video upload by Superbooth Berlin

"Miami-based Chelsea Bruno also known as Eden Grey makes music using her own techniques approaching music technology, in an effort to express the ineffable. Dr. Bruno began researching and working with the Eurorack modular synthesizer whilst earning her Masters’ degree at Florida International University in Music Technology.

Modular synthesis was the main research focus of her PhD in Music Composition at Royal Holloway, University of London, while participating in synth meets and performing in the UK and Europe, and organizing the CV FREQS London synth meet and concert events. She has been a very welcomed guest and performer at SUPERBOOTH already."

DIY Voltage Controlled Oscillator

video upload by KellerDev

"This VCO has saw, triangular and square wave output. Simulation on falstad: It has puls width, linear and exponential frequency modulation.It is based on a Ray Wilson schematic, from MFOS:
RIP to Ray Wilson
Find the schematics, PCBs and layout on my patreon:"

SIDETRACKED / figuring out recording setup / eurorack

video upload by BRiES

"I got sidetracked so much the last few weeks trying to figure out a better way to record signals from the modular. It's not at all straightforward. Here I recorded the bass onto a seperate channel to get the 'oomph' back into it with some nice pre-amp plugin... sounds like a good fix right? But now I can't run it through the sidechain compression which means I can't hear how the track SHOULD sound when tracking it. SMH.

After recording this video I've adopted the 'outboard mixer road' completely. It's a hell of a mess of cables but the flexibility of an outboard desk with 3 stereo outs and 6 aux sends is hard to beat. The mixer I have has a great sound to it as well and after a lot of consideration I realised creating an environment for making music and sounds should always primarily be based on sound rather than practicality (even though both matter and it sometimes is a difficult balance)."

Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.