HY-ESG Is A FREE Euclidean Sequencer Gate By HY-Plugins


Bedroom Producers Blog proudly releases HY-ESG, a freeware Euclidean sequencer gate developed by our friends at HY-Plugins.

HY-ESG is a gate sequencer (aka a trance gate effect) with a twist. It uses a Euclidean sequencer instead of the standard step sequencer seen in most other trance gate plugins. You’ll probably find that HY-ESG is more fun and inspiring to use than your current favorite gate sequencer effect.

But what does Euclid, an ancient Greek mathematician from mid-4th century BC, have to do with step sequencers and trance gates?

I asked myself the same question when Mr. Tadashi Suginomori, the DSP programming mastermind behind HY-Plugins, reached out and told me that the forthcoming HY-ESG plugin will be released for free on Bedroom Producers Blog.

Happy about the news, I was eager to learn more about Euclidean sequencers (because my knowledge at the time was non-existent). As per usual, the Internet provided all the answers in a matter of minutes.

A Quick Introduction to Euclidean Sequencers

The Euclidean algorithm is a mathematical method for finding the greatest common divisor of two numbers. It appears in Euclid’s Elements (a textbook from 300 BC) and is actually one of the oldest mathematical algorithms in everyday use.

More than two millennia later, Mr. Godfried Toussaint (1944 – 2019) discovered that the Euclidean algorithm can generate rhythms. He described the process in a paper titled “The Euclidean Algorithm Generates Traditional Musical Rhythms,” published in 2005.

Fast-forward to the age of VST plugins and Max for Live devices, and you won’t have a hard time finding quite a few musical sequencers that utilize this concept, including HY-Plugins’ very own HY-RPE2.

Another one of those plugins is the brand new HY-ESG gate sequencer by HY-Plugins.

A Quick Introduction to HY-ESG

HY-ESG is a freeware trance gate programmed by HY-Plugins, the developer behind popular VST plugins like HY-Poly and HY-TP2, to name just a couple. The effect is available for free download exclusively here at Bedroom Producers Blog.

At its core, HY-ESG is a gate sequencer. Its sequencer module controls the gate effect, which uses an ADSR envelope to modulate the volume. It can add rhythm and movement to static sounds.

To make things more interesting, HY-ESG substitutes the standard grid-based step sequencer with a Euclidean sequencer, unleashing the age-old rhythm-generating powers of ancient Greek mathematical algorithms in the comfort of your DAW. Πῦρ!

On a more serious note, let’s take a closer look at HY-ESG’s interface.

HY-ESG is a free gate sequencer by HY-Plugins.

HY-ESG is a free gate sequencer by HY-Plugins.

Located on the left is the Euclidean sequencer module, controlled by the set of knobs on the right. The user can define the number of steps and pulses, as well as the sequence’s duration and direction. The sequence can be rotated, randomized, or restarted at any step.

The Gate section is where you’ll find the ADSR controls for the volume envelope. This is where you’ll adjust the shape of the triggered steps, making them snappier or duller. On the right, the user can change the output gain and adjust the mix knob.

The Modulation section is where things can get crazy, in the best of ways. HY-ESG offers three modulation sources, each capable of running in LFO or S&H modes. These can modulate the ADSR envelope, the mix knob, and yes, the sequencer controls, too.

Use one LFO to modulate the number of steps while another LFO modulates the pulses and the S&H generator controls the mix knob.

Say ἴθι χαίρων to monotonous sounds and Χαῖρε to ever-evolving complex rhythms that will spark a philosophical debate about the creative limitations and other negative implications of grid-based sequencers in modern-day music production software.

Back to being serious, HY-ESG is a unique, versatile, and easy to use gate plugin. Load it as an insert on an audio channel and explore the endless rhythmic effects it can create.

If you like HY-ESG, visit the HY-Plugins website for more incredible software.

HY-ESG Technical Details

HY-ESG is available in VST, VST3, and AU plugin formats for digital audio workstations on Windows and macOS. Both 32-bit and 64-bit plugin hosts are supported.

The plugin features a Euclidean step sequencer, ADSR envelope, three modulation units with two modes, undo/redo functionality, a bypass switch, and a preset manager. The interface is freely resizable.

IMPORTANT: The macOS version of HY-ESG requires macOS 10.12 or later.


Free download: HY-ESG (16.8 MB download size, ZIP archive containing EXE installer, 32-bit & 64-bit VST/VST3/AU plugin formats for Windows & macOS)

Developer’s website: HY-Plugins

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About Author

Tomislav is a content creator and sound designer from Belgrade, Serbia. He is also the founder and editor-in-chief here at Bedroom Producers Blog.


  1. Super!
    TOMISLAV, Tadashi released 07.02 update v1.2.0 for HY-POLY with vector wave-table oscillator block. I think this deserves attention, because the possibilities and the sound of this synthesizer are becoming close to limitless.

  2. George Martínez


    Outstanding BPB! By the way, a little bit out of topic but, will Electrix BPB Edition be available again?
    Thanks in advance

  3. Can’t run on Mac OSX 10.10, probably needs of later OS :

    “HY-ESG.pkg can’t be installed because its digital signature is invalid.
    The package may have been corrupted or tampered with.
    Get a new copy of the package and try again.”

  4. Great!!! Now I can make simpler Multiband Polyrhythmic Gate. Previously I used HatefishRhyGenerator and Envelover midi controled gate

  5. Same problem as Neytcev and Max:
    “HY-ESG.pkg can’t be installed because its digital signature is invalid.
    The package may have been corrupted or tampered with.
    Get a new copy of the package and try again.”
    I have Mac OS X 10.11

  6. Thanks for sharing this, unfortunately I have an issue with downloading.
    Tried to download a few times, but no mail arrived here. I used two different mail addresses, waited about 12 hours, checked spam mails, nothing. Each time I got a transaction id but no mail.

  7. push pull fool


    hello there ! I managed to install the plugin and my daw (reaper on windows ) recognized it , but it seems as the plugin doesn’t put out any signal to the channels.
    it seems to work graphically & the gui is functioning correctly and synced to host , but it doesn’t seem to produce the midi signal to the chain . is there something I’m missing in the preferences or the setup ?


    • Tomislav Zlatic


      Hello, thanks for checking out HY-ESG! Well, the thing is… it’s not a MIDI plugin at all. It’s an audio effect (volume gate) with a built-in Euclidean sequencer. So, load it as an insert on an audio channel and play some sounds through it. I hope that helps! :)

  8. Yes ! Thanks a lot Tomislav ! That looks very fun. Thank you for all the job you do and thanks to your team.
    Have a nice day.

  9. Thanks very much Tomislav, BPB & HY for this kind offer.
    It sounds very interesting in your video (on my phone), i look forward to using it later very loudly !.

  10. With respect to my last comment, I know there is dedicated “Downloads” section which is aimed to place everything at one location to download.

    So, my suggestion is already implimented in other way. But, a reference to “Downloads” in “Free Plugins” page will still help to new visitors, I think.

    Many thanks to Team BPB for great help to audio community.

  11. It’s a fantastic plugin. Unfortunately HY-ESG’s internal sequencer doesn’t start in sync with Logic. It’s not in sync even when I am starting at bar 1. The result always different and unpredictable which makes it really hard to use.

    Is it just me?
    How do I get it run in sync.

    HY-ESG 1.0.2., Macos 10.14.6, Logic 10.5.1.

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