Show HN: Turning Hand Movement into Music

3 getToTheChopin 2 8/15/2025, 2:43:27 PM twitter.com ↗

I'm experimenting with a musical instrument design, using hand rotation to change tempo and note cycles.

Created with javascript, mediapipe computer vision, tonejs, threejs.

This runs in real-time in the browser.

Live demo here (requires webcam access): https://www.funwithcomputervision.com/radial/

Comments (2)

nimzoLarsen · 3h ago

this is really cool, I like the UI and it sounds a lot better than I was expecting it to

getToTheChopin · 3h ago

Thank you! I spent a lot of time tuning the synth parameters in tonejs to try to get something I was happy with.

The scales are based on the Japanese "in" pentatonic scale (sometimes called the Sakura scale), which I find really pretty.

GPT-5 (openai.com)

Fight Chat Control (fightchatcontrol.eu)

GitHub is no longer independent at Microsoft after CEO resignation (theverge.com)

I tried every todo app and ended up with a .txt file (al3rez.com)

Claude Sonnet 4 now supports 1M tokens of context (anthropic.com)

Ultrathin business card runs a fluid simulation (github.com)

I want everything local – Building my offline AI workspace (instavm.io)

Wikipedia loses challenge against Online Safety Act (bbc.com)

Streaming services are driving viewers back to piracy (theguardian.com)

FFmpeg 8.0 adds Whisper support (code.ffmpeg.org)

Emailing a one-time code is worse than passwords (blog.danielh.cc)

Debian 13 “Trixie” (debian.org)

Vibechart (vibechart.net)

Steve Wozniak: Life to me was never about accomplishment, but about happiness (yro.slashdot.org)

Claude Code is all you need (dwyer.co.za)

VC-backed company just killed my EU trademark for a small OSS project

Nginx introduces native support for ACME protocol (blog.nginx.org)

Show HN: The current sky at your approximate location, as a CSS gradient (sky.dlazaro.ca)

Why LLMs can't really build software (zed.dev)

Gemma 3 270M: Compact model for hyper-efficient AI (developers.googleblog.com)

Claude says “You're absolutely right!” about everything (github.com)

PYX: The next step in Python packaging (astral.sh)

How I code with AI on a budget/free (wuu73.org)

Try and (ygdp.yale.edu)

Show HN: Building a web search engine from scratch with 3B neural embeddings (blog.wilsonl.in)

GPT-5: Key characteristics, pricing and system card (simonwillison.net)

Wikimedia Foundation Challenges UK Online Safety Act Regulations (wikimediafoundation.org)

This website is for humans (localghost.dev)

OpenFreeMap survived 100k requests per second (blog.hyperknot.com)

Jim Lovell, Apollo 13 commander, has died (nasa.gov)

Search all text in New York City (alltext.nyc)

Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?

What's the strongest AI model you can train on a laptop in five minutes? (seangoedecke.com)

Historical Tech Tree (historicaltechtree.com)

Why are there so many rationalist cults? (asteriskmag.com)

Open hardware desktop 3D printing is dead? (josefprusa.com)

Meta Leaks Part 1: Israel and Meta (archive.org)

Cursed Knowledge (immich.app)

The Chrome VRP Panel has decided to award $250k for this report (issues.chromium.org)

Monero appears to be in the midst of a successful 51% attack (twitter.com)

The Framework Desktop is a beast (world.hey.com)

GPT-OSS vs. Qwen3 and a detailed look how things evolved since GPT-2 (magazine.sebastianraschka.com)

Flipper Zero dark web firmware bypasses rolling code security (rtl-sdr.com)

Getting good results from Claude Code (dzombak.com)

StarDict sends X11 clipboard to remote servers (lwn.net)

GPT-5 for Developers (openai.com)

Linear sent me down a local-first rabbit hole (bytemash.net)

Show HN: Engineering.fyi – Search across tech engineering blogs in one place (engineering.fyi)

Trump Orders National Guard to Washington and Takeover of Capital’s Police (nytimes.com)

OpenSSH Post-Quantum Cryptography (openssh.com)

Show HN: Turning Hand Movement into Music

Comments (2)