vitaly-pavlenko
Joined 7 years ago
Karma
195
Submissions
43
Member since
May 31
Recent submissions
Comment · 28 days ago
I'm solving a similar problem: to build a 12-TET isomorphic music notation: https://rawl.rocks/
Comment · 10 months ago
Working on https://chessnawk.vercel.app/ – a set of auto-grading tasks for middle school students learning programming.
Comes with Robot, Turtle, HTML/CSS (pixel diff tasks) and a gradual introduction into programming concepts. Currently on JS, literally right now GPT-5.2 helps me adding Python.
I've integrated a simplified clone of Replicube. I hope to integrate ideas from Human Resource Machine and Turing Complete later this year.
I bear heritage of Eastern Bloc-typa math/programming olympiads, combined with front-end/product skills. So I kinda owe to ship this thing to community of fellow secondary school CS teachers.
Surprisingly, nothing comes closer in terms of depth and usability in the classroom for ordinary 12yo kids.
I test this thing 5 times a week in my classroom and I constantly polish it at night. 100% vibe-coding.
Comment · 1 year ago
I'm working as a school teacher of Computer Science for Year 6..9. Currently I develop an online collection of exercises for intro to programming.
I have exercises:
- on turtle, using my DSL with three commands: 4[100 r90] draws a square
- on robot (blockly)
- a 2D replica of Replicube to teach conditions in JS.
I've started vibe-coding it two months ago and I add new stuff whenever I need it for my classroom.
I'll soon add signups.
The platform will be free forever, monetized via banner ads somewhere in the future. The target audience is middle school teachers of CS.
Comment · 1 year ago
Yeah, I see your point. You want same alterations on different Roman numerals to look the same. (In my current system b9 over I and b9 over V look different.)
I briefly explored this appoach: https://rawl.vercel.app/edit?a=beethoven_op10no1mov1 (Although it was a mess.)
In current Rawl terms I call it "annotate modulation at every chord".
Back in the days I thought it's better.
It turned out that:
- You need to do tedious annotation. So you can only work with classical repertoire datasets like https://github.com/MarkGotham/When-in-Rome
- Worse even, you need to look at two places simultaneously: to the score and to the string of Roman numerals
- And worse still, all chords then look the same. The score itself becomes bland. Most of the time, if you aren't deep inside the jazz repertoire, there isn't that many alterations. So you'd mostly see the same four colors - root, minor third, major third, perfect fifth.
- And, as evident in Mozart-Beethoven repertoire, you need to decide what to do with fully diminished chords. Because they sorta don't have a root, acoustically.
Comment · 1 year ago
In all cases of tonicization I decided whether to notate a brief tonic change or not (piece by piece, case by case): https://rawl.rocks/s/applied/chain_of_dominants
You can always manually "probe", minutely "recolor": click on a measure number and hover a potential new tonic.
Comment · 1 year ago
So here I stand with dilettantes :)
Being a jazz college dropout, I stopped building around standard notation when after two years of training - and I started learning piano at 25 - I still didn't get any fluency in instantly seeing harmonic structure in the scores.
I don't care that much about articulation. I can hear articulation anyways. What I care about is the elusive layer of harmony which is so hard to reason about without the right tools.
That's why people do Roman numerals, figured bass, all sorts of annotation: https://github.com/vpavlenko/study-music/blob/main/parts/cla...
And that's what I was chasing. Something that gives me, a guy who didn't spent formative years of K-12 by sight-reading at the piano, a way to build mental models of how Western harmony works.
And here, I believe, I'm with the majority of people.
Comment · 1 year ago
It's rainbow if we skip coloring 1 and 5 and color them with grayscale instead.
Here's the question. If we can allow one color not to be "colorful" (chromatic), what pitch would that be? It's the tonic (pitch 1).
If we allow two such colors? 5 is a good candidate, it's present in almost all popular scales. (Locrian isn't very popular.)
The rest 10 colors go in rainbow by thirds, as you proposed.
So, using two grayscale colors, I've reduced the demand to make distinct enough color palette from 12 colors to 10 chromatic + 2 grayscale.
Which (10), in my experience fighting with different screens and projectors, is almost the limit of having something stable, distinguishable, nameable and memorable.
Funny enough, those 10 can be further split into 5 brighter and 5 darker pitches. Exactly as they turn from bright to dark if we go from bright to dark modes: https://www.dropbox.com/scl/fi/dku7jezn00yltb607j2un/Screens...
Comment · 1 year ago
Fair point.
In my approach I got very dense yet readable information density on the screen. Eg. the entire Mov. 1 of Moonlight sonata is a single screen on my 16" Mac, yet all tonal effects are there, visible: https://rawl.rocks/f/Sonate_No._14_Moonlight_1st_Movement
Comment · 1 year ago
Yes! hooktheory was my main inspiration over the years.
One downside of hooktheory is that it's a reduction which someone should make for you beforehand. That is:
- it's losing information
- if no one analyzed a song yet, there's nothing you can do about it
And, although I don't have an easy way to upload MIDIs yet rather than "you ask me to upload it and I'll do it", I don't do any reduction of the (sonic) score itself.
Comment · 1 year ago
They are actually similar by circle of thirds. They go as 1-3-5-7-2-4 over the rainbow.
This makes main triads be smooth gradients instead of random three-color flags.
1 and 5 pitches are neutral because:
- they are neutral (a hollow tonic power chord)
- they don't convey any information about the scale. they only give a reference point to measure everything else against
Comment · 1 year ago
I just wanted to revamp the good old Turtle to introduce my 11yo students to "repeat N times" loops. I'll get them lost at the angles' math for sure, but worth a try.