
MIDI Piano & Guitar Chords
Free music theory tools for any MIDI keyboard — web & mobile
What it does
FreeMIDIChords is a free, open-source music theory tool suite that works with any MIDI keyboard — no installation required for the web version, no subscriptions, no paywalls. Plug in any MIDI keyboard and it detects chords and intervals in real time Visualizes them on staff notation, a piano keyboard, and an interactive circle of fifths Works in reverse too — pick a chord and hear it played back through MIDI or built-in audio Includes scales, and metronome
Does a similar job
all alternatives →- IMI made a MIDI tool to teach me piano2022 · github.com · ▲94
- PTPiano Trainer – Learn piano scales, chords and more using MIDI2025 · github.com · ▲203
- PTPiano Trainer – Learn piano scales, chords and more using MIDI2022 · github.com · ▲159
- APA piano chord reference tool2022 · pianochord.io · ▲206
- ASA simple web game to help learn chords and basic progressions2024 · chords.yottanami.com · ▲215
Hi Hacker News, I've created Chord Nebula, a simple web-based game designed to help users learn and practice piano chords, basic progressions, and harmony fundamentals. The game integrates with MIDI keyboards, allowing you to play chords in real-time and receive immediate feedback based on the key you choose. GitHub Repository: https://github.com/yottanami/chord_nebula Live Demo: https://chords.yottanami.com Requirements: To use Chord Nebula, you'll need a MIDI keyboard connected to your computer. Current Status: Chord Nebula is still a simple project. I'm…
- PRPianoterm – Run shell commands from your Piano. A Linux CLI toolMar 2026 · github.com · ▲61
A little weekend project, made so I can pause/play/rewind directly on the piano, when learning a song by ear.
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