Showing posts with label Rob Hordijk. Show all posts
Showing posts with label Rob Hordijk. Show all posts

Monday, July 08, 2024

It's a Rungle outthere | Cybernetics EP02 | From Benjolin to Blippoo Box

video upload by

"The Benjolin is a powerful module. For many, it's a chaotic noise source, which was exactly the point of the design. The Blippoo Box is less chaotic, more musical and designed as an experimental instrument. It's more a Pandora's Box. Both have the Rungler in common. It refers to a shift register circuit, but also to the 5U module that includes two VCO's and is not unlike the Benjolin's chaotic core. I do not own a Blippoo Box for obvious reasons (it's now priceless) but I do love my Benjolin. It's going to be a noisy video where I'll try the Rungler concept on Marbles and XAOC Leibniz.
Marbles is a cool extension to the Benjolin, and the Benjolin can also be a great conventional complex VCO.

Rob Hordijk designed the Rungler module (and circuit) to cover the space between a fundamental sinewave and the total chaos of white noise. A creative source of designer noise to enrich your patch. And wow, what a designer he was."

Tuesday, June 04, 2024

When Forbidden Planet And Chaos Theory Meet - The Blippoo Box

video upload by

""Forbidden Planet in a box" - the Blippoo Box by the late Rob Hordijk is a wonderfully out there electronic instrument. Based on chaos theory and a love for vintage Sci-Fi it creates organic and liquid tones that keep inspiring even after a long time. Originally made in small batches and sold for about 650EUR, it became very desired among hardcore synthesizer freaks and experimental musicians. This drove prices up to the thousands even during Rob's lifetime, and even higher after. I never thought I would own one, but a lucky trade happened. In this video I tell the tale of the Third Monk (as written by Uncle Meatball), demo the Blippoo's sound and features, as well as showing modern alternatives.
Sources listed below.

Music, Soundpack and thanks:"


Tuesday, April 30, 2024

THE First Surviving BENJOLIN Synthesizer. And the story is quite interesting!

video upload by LOOK MUM NO COMPUTER

Follow-up to The Worlds First Benjolin - Sample Pack - Obsolete Soundlab

"The Blippo Extravaganza Benjolin, The survivng Plinth, Built By the late Rob Hordijk and Kassen. Which is believed to be the first surviving Benjolin, or very close to that!"

Sunday, April 28, 2024


video upload by Martin Peters

"I have been noodling away on the guitar for quite a while now. Looking for new inspiration and musical insights. Doing this I sort of neglecting the synthesizers. I barely touched them since our last Beyond Berlin concert on E-Day in April 2023. In Januari I bought the Behringer Victor module and came up with this music. Last Thursday I switched the synths on again and the music was still in the Cirklon. I added some bits and recorded the music. What you see is the second take because in the first take the Minimoog solo's were not good enough.
It starts with a sequence on the Behringer Victor. Then the bass from the modular comes in. After that sequences from the Rob Hordijk OSC HRM, Oberheim SEM, Verbos Harmonic Oscillator, Korg Opsix and DSI Mopho are added. Strings are from the Waldorf Q Keyboard and the solo's from the Moog Minimoog."

Tuesday, December 05, 2023

Audio, modulation, or both? Let's make a sample-and-hold feedback patch à la Rob Hordijk.

video upload by Frap Tools

"Let's make some serious SAPÈL feedback patching! Today we draw inspiration from Rob Hordijk's talks about sample-and-hold circuits and chaos theory."

00:00 Introduction
01:53 The S&H feedback
05:04 Adding the filter
09:02 Stacking more filters in parallel
10:50 Using a sequencer instead of a random S&H
12:12 Randomizing the sequence and closing remarks

You can find Rob Hordijk's masterclass series here.

Wednesday, September 13, 2023

Hordijk Improv for September 2

video upload by Todd Barton

"In Der Bosch, Netherlands on September 2 friends of Rob Hordijk celebrated his life, legacy, genius and lovely humanity. His dear friends Richard Scott, Biyi Ames and Joker Nies performed live and I offered this remote/virtual live performance.
Studio monitors and a sub recommended."

Friday, August 25, 2023

Hordijk Rungler to Buchla 296

video upload by Todd Barton

"Today's little experiment."

Hordijk Five Snippets

video upload by Todd Barton

"I've used this same patch for the previous two video explorations. I will conclude and pull this patch now and move on. These three videos are a tribute to Rob Hordijk's genius: the fact that, without changing patch cables and only adjusting knobs, I can get such diverse characters of self-playing patches! I don't find this kind of range and variety on my other synths."

Monday, August 21, 2023

Three Hordijk Variations

video upload by Todd Barton

"Same patch: Three Variations of knob settings. Checkout HORDIJK 2023: Rob always loved to explain his theories and concepts and show it to people as well. Here he is explaining at the Sines and Squares Festival, 8 years ago. Any questions? On September 2nd, Den Bosch, Netherlands, you can ask the expert companions of Rob Hordijk and hear them perform. Tickets at"

Saturday, August 19, 2023

Hordijk Single Patch Snippets

video upload by Todd Barton

"Six snippets using the exact same patch. This is a tribute to Rob Hordijk's genius the fact that without changing patch cables, only adjusting knobs I can get such diverse characters of self-playing patches! I don't find this kind of range and variety on my other synths."

Thursday, August 17, 2023

Hordijk Random Moments

video upload by Todd Barton

"Always experimenting with random manifestations in the Hordijk system. This time focused on the B envelope of the Dual Envelope module. It's fun to try and anticipate what and when something comes next."

Friday, August 11, 2023

A Simple Rungler Piece

video upload by Todd Barton

"It doesn't get much simpler that a single patch cable out of the Hordijk Rungler followed by a few simple knob turns :-)"

Friday, August 04, 2023

Hordijk exp 7

video upload by Todd Barton

"Just learning the instrument, listening to what it wants to do."

Saturday, March 18, 2023

Random Hordijk

video upload by Todd Barton

"I love the innate feel of Rob Hordijk's random circuits. He was a true treasure."

Thursday, March 09, 2023

Wingie Blippoo + TouchOSC

video upload by UncertainMusicCorps

"Quick runout for the alternative Wingie firmware, inspired by Rob Hordijk's original box of controlled chaos.

Control of the beastie is greatly enhanced by the superb TouchOSC template created by Mod Wiggler member bcomnes

Here I'm running the Wingipoo out through Lancet Retroverb spring reverb for extra metal drippiness.

This video is often loud and has a very wide frequency range so choose your playback device accordingly"

Thursday, October 27, 2022

Hordijk Phaser Feedback

video upload by Todd Barton

"Back to exploring feedback within the Hordijk system: Phaser/Waveshaper feedback with Rungler."

Saturday, September 10, 2022

Hordijk Playing the Quant

video upload by Todd Barton

"Rob Hordijk's synth designs are legendary -- it's amazing the variety and variation possible with just a single knob. 🙇‍♂️"

Tuesday, September 06, 2022

RIP Rob Hordijk - Creator of the Blippoo Box, Benjolin, and Hordijk Modular Systems

video uploads by Pedro Trotz

"Rob Hordijk explains his modular designs at the European Electro Music Event 2012 that took place at Mallorca - Spain."

Sad news in via an anonymous reader today, who spotted the following from Pedro Trotz on Mod Wiggler. Those of you that have been following the site should be familiar with Rob Hordijk's work through numerous posts on the site. Two of his most famous creations were the Benjolin and Blippoo Box.

"I am deeply saddened to announce that my friend and mentor, Robert Ernst Hordjik, passed away earlier today. He was an important part of my life and I am sure also of many others here. He will be greatly missed.

I first met him in the Chateau Sonore event he organized in Belgium, in July 2007. There, lots of similar souls shared our passion for electronic music and electronic instruments. There was a lot of G2 and modular talk, but also performances, instrument demos, concerts, rehearsals... That's when I first heard of the Blippoo, one of his first creations that made him famous.

A few years later he started his work on the modular system that has his name. I felt so grateful for his initiative in Belgium that I couldn't help but planning a follow-up, this time in Mallorca. This time, our meeting had a lot less participants but it was an even better opportunity to make friendships that will last for a lifetime. I believe that in this meeting, in a trip we made to the north coast of the island, between the mountains of the Serra de Tramontana and the Mediterranean Sea, is when Rob decided that he wanted to retire to Mallorca. I can't blame him. It was the middle of January and we were having a pic-nic on the side of a curvy road facing the sea and enjoying what we natives call "the little summer" which is something that happens from time to time in mid-winter when the sea suddenly calms and temperatures rise up to 20 degrees Celsius.

We had a Benjolin workshop, we talked a lot about his design philosophy, and I was happy to record the first series of videos about his modular System. The ones you can find in my Youtube channel. After that series of videos I asked him to build a modular for me and soon enough he came back to Mallorca to deliver it in person.

During this visits I introduced him to Biyi and they automatically made a great connection. Biyi went a few times to The Hague to assist him in the building of Blippoos and modular systems. He even built his own under Rob's supervision. We all three had the idea to start a company in Mallorca where Rob would make the designs, Biyi build the stuff and I would take care of the business side of things. It was all set-up. As soon as his obligations in the Netherlands were fulfilled he would come to Mallorca. The moment arrived but almost at the same time his illness and COVID made things extra difficult.

In one of our talks he said to me that the Benjolin, the Blippoo and the Modular System were his dearest creations and that he was honored to have made so many people happy with them. Let's honor his memory by using them and making the most beautiful sound imaginable.

Farewell, my friend. I love you." - trotz

The following is from the Synth DIY wiki page on Hordijk.

Born in 1958, self described "synthesizer designer and builder,[3]" Rob Hordijk began learning electronics from around age 12 after developing a fascination with the glowing tubes in stereo amplifiers.[1][4] When he was 14 his father who had noticed young Rob's interest gave him a subscription to an electronics course, which lead to an examination for a ham radio license.

Trained as a designer and not a musician, Rob came from an arts background, studying as a sculptor and jeweler in the 1970s. He approached electronic music in a similar spirit to abstract painting, inspired by the ambient works of Brian Eno, and Luigi Russolo's Intonarumori instruments; where attempts were made to blur the boundaries between music and art:[1]

"In those days I was quite interested in the idea of sound as a material to be sculpted, in the same way you can sculpt wood and metal. [...] You can make mechanical objects that make all sorts of sounds, or you can make electronic objects that make all sorts of sounds. but what I like about the electronic objects is that you don't see what makes the sound. [...] It opens the way to sort of make it a bit mysterious."[1]

In the early 1980s as various integrated circuits, micro-controllers, and processors became available to hobbyists, Rob began buying things such as the early Curtis chips and RCA 1802 based SuperElf processor board out of curiosity more than professional ambition.[1][5] Later switching to an Apple ][+ and the Mountain Hardware Music System, for which he developed a Forth language version that could do all sorts of stuff with the Mountain cards, like KarplusStrong-type plucked string sounds and pitch shifting.[5] His first introduction to a DSP was to the DMX1000 around 1984. In 1986 he switched to Atari ST and an Akai S900.[5] These days he is a Clavia Nord Modular G2 aficionado.[5]

"I am not really a gear freak. But I do believe in mastering synthesis techniques, in making synthesis a second nature, so to be able to fully concentrate on the creative processes."[5]

After finishing art school, Rob also completed 11 years of study in Information Technology, learning about design methods and inventory control.[1] As well as his own instruments Rob worked on the Nord Modular G2 including contributing many patches to the Nord Modular online community, and wrote a comprehensive unofficial manual of the instrument. He has produced music for environments, buildings, film, and dance performances, but is yet to produce an official release on a label.[5] As of 2022 Rob has announced his retirement and will no longer be taking orders.[6]

Design Philosophy
Rob's personal definition of a modular synthesizer is more to do with modulation than modularity; referring to functional modules as 'sections'. Everything is supposed to be able to modulate or effect everything else. All levels within the system are optomised for comparability with one another.[1]

See for more.

Update via brian comnes: Hordijk info on synthesis: - quite in depth.

Tuesday, June 07, 2022

Geometric Benjolin

video upload by Brian Comnes

"KInda Dark IMHO"

Monday, May 30, 2022

Hordijk Plain Osc Sync

video upload by Todd Barton

"In this earlier video [posted here] I took the Osc Sync through its wild s/h randomness paces. This demo is just the Osc Sync without the randomness.

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

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