I design this app to help Grade 7 students in Limpopo to understand foundations of arithmetics:
Also, I've designed a course on Strategic Games for Grade 7 kids. It's about winning/losing positions, game tree, Bachet and Kayles. Contact me to get the materials and support, since I have not time yet to publish them properly.
Other vibe-coding demos of the past:
- https://vpavlenko.github.io/where_are_you/
- https://vector-lab.cxielamiko.chatgpt.site/
- https://springroll-podcast.pages.dev/
I learned Xitsonga by reading the bilingual corpus of 170k sentences:
(I've read 10% of it.)
I annotate it to preserve my understanding of the structure and track my progress.
In 2025..26 I worked as a middle school teacher of CS. I design tasks for my students:
I create bite-size programming tasks so that teachers can teach algorithmic thinking as early as to 10yo students. In fact, some of it is possible with 7yo students. I talk about "repeat N times" loop, nested loops, conditions (if, and/or), variables, while loop, functions with parameters.
I teach JavaScript because I believe that school teaching should deeply integrate a conversation about modern interfaces, event handlers, data <-> UI, network requests, UI debugging etc.
I don't believe that teaching it in Python is optimal. Yes, Python is cleaner as a language. But pygame/tkinter is worse as a way of showcasing interfaces and modern debugging.
Ideally, I need to support both languages for as long as needed until most teachers migrate :)
I study the structure of music and I make it easier to digest. I care about the order of notes (pitches) in compositions. I wonder which structures are there, and how correlations of those structures define styles. I don't care about rhythms or timbres/sound.
In a broader sense, I'm an educator with a lot of experience teaching various aspects of programming. I've created https://snakify.org/ and https://pythontutor.ru/, which is how I make my living. And, separately, I enjoy studying complex hierarchical evolutionary systems like human languages or music (possibly that's a complete list).
My main project is rawl.rocks where I employ colored music notation so that you see chords as flags. I reuse a huge collection of MIDI files available in the internet (mainly from MuseScore.com) to show the real structure of Western harmony and arrangement, by styles and composers.
I firmly believe that the best way to study the anatomy of music is by reading and analyzing tons of scores of pieces you care about. Fortunately, many scores are digitized, allowing us to create more visually ergonomic tools for this task, surpassing the clumsiness of standard notation. These tools can enhance the reading experience, making it easier to quickly identify various patterns, including harmonic, voice-leading, textural and formal elements.
I make an interactive introduction textbook to harmony of different composers and styles, somewhat like a sequel to https://book-one.hooktheory.com/. My first narrative is on harmony in Musescore Top 100. I already run a free 1-to-1 online course on analysis of structures in Western music using this list - in Russian or English. DM to start.
I eagerly need to show my current state of work to people, so let's jump into a screen-sharing call.
Some demos:
- https://caplin.cxielamiko.chatgpt.site/
- https://vpavlenko.github.io/d/
- https://vpavlenko.github.io/chiptheory/
- https://vpavlenko.github.io/12/
- https://vpavlenko.github.io/j/
- https://vpavlenko.github.io/p/ and https://vpavlenko.github.io/p2/ (the last one won't work because of Audio Context protection)
Everything I do I test on Chrome desktop (Mac OS) in light mode. I'll happily accept pull requests fixing the UI glitches on other setups.
Insitutionally, I consider myself doing a PhD in the pedagogy of music theory. However, I'm not affiliated with any institution 💀🤡. I hate bureaucratical systems, hierarchies and the human struggle inside capitalism. Also, I love cultural anthropology.
I've recorded some lectures in Russian. I'd love to collaborate with designers of educational content – YouTube and TikTok creators – who wish to spread the joy of seeing structure in music. I can maybe give classes on the structure of music in your city in the UK or anywhere else - for free, if you can summon a stable nerdy audience.
I'm an independent researcher. As soon as I won't be able to afford a Full English at a local coffee shop anymore, I'll add more ad banners into all my demos. "Everyone wants to be rich and against capitalism."
I might mentor computer science students who seek to do projects on the structure of music. Although my projects are really about music, not about technologies. Message me if you need a project to work on, although don't expect anything trendy or easy: https://github.com/vpavlenko/study-music/tree/main/research
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