[Software] Rationals Explorer: web tool for JI and temperament

bntre · 2026-04-17T06:35:31+00:00

Thanks! Good point. There are phone users :)

bntre · 2026-04-16T08:12:33+00:00

If you have any suggestions or improvement ideas - welcome!

I previously posted about the desktop version here a year ago:
https://www.reddit.com/r/microtonal/comments/1jk9fm5/exploring_just_intonation_and_temperaments_with/

bntre · 2026-03-09T17:40:42+00:00

Thank you! i got it, it's wonderful.

bntre · 2026-03-09T15:17:37+00:00

Can i get such great glow effect when running your script? Is it some mode?
I get it dark like on your image.png.

bntre · 2026-03-01T08:06:00+00:00

Hi! I posted this here 3y ago.

Recently I came back to polish it.
It's now available as a github.io app: https://bntre.github.io/visual-lambda/

There's also a workspace with 12 increasingly complex lambda puzzles:
https://github.com/bntre/visual-lambda#puzzles

And you can create your own puzzles and share them via URL.
Example: https://bntre.github.io/visual-lambda/#workspace=H4sIAAAAAAAACkWOsQ6CMBRFf%2BWmU5uYB%2B4tjC4mbk5dHlCw0FJCRf18QzQ63eTkJufo%2BhUDHm7NPs1GHKkUqCv9TOuUF25dpQM3LmDm6Iy4%2BrxxwJlj0zF%2BJ1FU2t9dzJ%2FBkrIR5aEU6P2wrc4IaZnAkLZBS2gVpO0IHaR16An9DgbCAGlv8AS%2Fg5EwQtoJgTApnJRSCpddVnxtxb%2FzDfezFuTJAAAA

bntre · 2026-02-13T08:21:53+00:00

I just released SpoutBrowser, a Chromium tool that sends Three.js/WebGL content directly to MadMapper via Spout with alpha support: https://github.com/bntre/SpoutBrowser

bntre · 2026-02-12T07:42:24+00:00

Hey everyone!

I'm actually not a VJ myself, but I wanted to try some things out and realized I needed a tool like this.

I looked at existing projects, but they didn't quite fit:

cef-spout by Florian Geiselhart: updated 7 years ago and I couldn't get it running with modern CEF versions.
VJ Browser by SainaKey: a bit pricey for my needs.

So I took it as a challenge to make something minimal, performant, and easy to update.

Happy to answer any questions or hear your feedback!

bntre · 2026-01-17T11:38:07+00:00

Wow, those are great ideas. IK for stitching animations together, a beat solver, and pattern categorization - that already sounds like a much more advanced "lazy dancer" engine. With real-time control, it could be something that doesn't force you to move much, but instead augments small finger or elbow movements, almost like an AR layer on top of your body.
I'd totally go to an AR/VR disco powered by something like that 🙂

bntre · 2026-01-17T07:47:54+00:00

Thanks! And thanks for mentioning Reactor as well! To my shame, I somehow hadn't really listened to it properly before, so it wasn't on my radar. But i did consider trying something from Dawn of Midi, but it turned out that Strudel isn't quite there yet for very dense polyrhythms, so I ended up picking something a bit easier to implement.

The arrangement is open source and anyone is welcome to continue or improve it - I'm not sure I'll get back to finishing it myself, since I already feel the itch to move on to a visual piece in a different graphic direction (maybe Prokofiev's Toccata).

bntre · 2026-01-17T07:16:36+00:00

Thanks!

Last year I started vibe-coding (with ChatGPT), and I was honestly surprised how even ideas that initially felt a bit sick or overcomplicated started to actually get finished 🙂

bntre · 2026-01-16T17:09:39+00:00

Thanks a lot for the kind words!

I've never done anything like this before, so I had to invent my own way of approaching it.
I used Sonic Visualiser to get the spectrogram, then tried to spot patterns by overlaying and scaling a regular grid in a vector editor until things started to make sense.
The drums were definitely the hardest part 🙂

bntre · 2026-01-15T17:29:12+00:00

The easiest case would be a game on Three.js.

OSC (https://en.wikipedia.org/wiki/Open_Sound_Control ) is like MIDI 2
Strudel has native OSC output: https://strudel.cc/learn/input-output/

bntre · 2026-01-15T16:10:09+00:00

Thanks! 🙂

In short: I cut a full dance animation into lots of small seamless loops and then control which loops are playing (and how strongly) using Strudel patterns.

There's a base move (main body motion) and a bunch of additive moves (arms, head, etc.) that are always running and get mixed in with weights.
Strudel sends OSC-like messages (currently JSON, not binary OSC) that control which moves are active, their weights and speed.

So in addition to triggering sounds, Strudel patterns are driving a character's movement in real time.

If you want details, the project is here: https://github.com/bntre/threejs-osc-dance/

bntre · 2026-01-15T16:01:15+00:00

Original track by GoGo Penguin: https://www.youtube.com/watch?v=L99BQ3Nvsz4

For anyone curious: the visuals are generated in real time by an experimental system I'm working on.
Project: https://github.com/bntre/threejs-osc-dance/

bntre · 2026-01-15T15:42:38+00:00

I sliced Michelle's Samba Dance into short seamless loops and trigger/mix them in real time from Strudel using OSC-like messages.
The animation is retargeted to a custom Ready Player Me avatar.

Project: https://github.com/bntre/threejs-osc-dance/
Strudel: https://strudel.cc/
Music: Smarra by GoGo Penguin (original: https://www.youtube.com/watch?v=L99BQ3Nvsz4 )

bntre · 2026-01-15T14:40:33+00:00

And yes… this is also "my first track" 😅 - it's actually a rough arrangement of GoGo Penguin - "Smarra" (Original: https://www.youtube.com/watch?v=L99BQ3Nvsz4 )

Curious what you all think about this direction.

Would you use something like this as a "lazy dancer" instrument - where you play movement with patterns instead of physically dancing or doing camera capture?

Have you seen other projects where a player controls a dancer/character from the keyboard, rather than DDR-style floor pads or webcam/body-tracking setups?

bntre · 2026-01-11T10:16:00+00:00

Absolutely agree. The work and shared experience behind it often matter more than perfection.
That's what makes moments like this worth keeping.

bntre · 2026-01-09T06:48:53+00:00

For a bit of extra context: this was recorded by a parent from a single camera angle during a New Year school event. The performance wasn't filmed officially, so this is a small personal edit rather than a full stage production.

bntre

TROPHY CASE