Synth Rorschach #67: Moon Rocks

Where does NASA keep the Moon Rocks? – Smarter Every Day 220 Published on Jul 9, 2019 SmarterEveryDay

The source of Formant knobs. Moon rocks!

OK, this one is a bit of stretch, but when I saw the small thumbnail for this video on YouTube, my first thought was, “did SmarterEveryDay do a video on modular synths?!”. For a split second I thought that was a Formant modular in the background. In

Division6 SQ816 Analog Step Sequencer

via this auction

“Manufacturer Description

The sequencer for the Mattson Mini Modular is available in the Eurorack format. One 52HP panel includes all the functions of the main sequencer and the expansion module. Here are some of the sequencer’s basic features:

2 rows of 8 steps, or daisy-chain them for a 16-step sequence.

A user tap-tempo mode that overrides the internal VC or external

George Mattson Announces His Retirement and the Division 6 SWAN II Eurorack System

This one is in via George Mattson of Mattson Mini Modular. Back on September 15, 2007, I posted a little teaser that would eventually launch Mattson back into the synth manufacturing world. He is the man behind the Syntar – the original keytar synthesizer, and the SWAN (Syntar Without A Neck) was the follow-up non-keytar version. It’s fitting and an honor that George Mattson is announcing his

Modular On The Spot – "Rain Dance" At Seward Park

Published on Oct 11, 2017 John L Rice

“This is my set from the MOTS event at Seward Park in Seattle WA USA October 7th 2017. *(also very short clips of the other performers at the end as a bonus)

Again I used my little Canon M5 mirror-less camera but this time with an 8mm fish-eye lens. Audio is a direct recording from the mixing desk. (thanks Bradley!)”

Division 6 Mattson SQ816 Sequencer on

Morpheum VCA / Ring Modulator Demo

Published on Mar 17, 2017 Division6Labs

“George Mattson demonstrates the Morpheum VCA / Ring Modulator Eurorack Module from Division 6. He talks about how amplitude and ring modulation work, and even a bit about what they have to do with radio.

More about the module here:…

Video by John L. Rice”

New Images of the Performance Music Systems S.W.A.N.

A few new images of the one and only Performance Music Systems S.W.A.N., aka Syntar Without A Neck! If you are not familiar with this synth, see here. You can find additional posts on Performance Music Systems here, including an interview with the creator of the S.W.A.N, George Mattson. Mattson of course, is the man behind Mattson Mini Modular and the M in Synthrotek’s MST line of eurorack

MST VCO – DIY Eurorack Module – Midiverse – TV

Published on Dec 14, 2016 MIDI-VERSE TV

“What’s up everybody? Welcome to Midiverse – TV. Today we’re going to be checking out the MST VCO. This is a DIY Eurorack Synthesizer module that we recently finished building. So here’s a quick overview and a few patch examples.

Available at –”

Buchla Format Mattson Filter Demo

Published on Dec 13, 2016 legionhwp

“Buchla format 4-Pole, 24dB/Octave State Variable Filter jointly designed by Synth DIY guru Jim Patchell and George Mattson.

The filter design is based off the now-obsolete SSM 2040 filter and has simultaneous Low pass, Band pass and High pass outputs.

PS: Yes I know Buchla uses Banana cables for CV only and Tinijax for audio. That’s what I meant :)”


Published on Jun 22, 2016 John L Rice

“I missed the Solstice ‘Strawberry’ Moon because we had a thunderstorm but the following night’s Moon was still pretty good.

‘The ancient and massive Skyclops was once a peaceful being, drifting through the night, observing all below with the Moon as it’s single great eye. But demons embedded themselves in Skyclops to control its power for their own

In the Mattson Dungeon with the Monster Mattson EML System

Doug Lynner, Stephen Golovnin & George Mattson in the sonic dungeon of Mattson Mini Modular studios.

The massive system they are playing is the mighty Mattson EML modular. It consists of vintage EML components and new designs from George Mattson. You can find a ton of pics and info on the Mattson EML channel label here.

George Mattson of course is the man behind Mattson Mini Modular as