# Chord Graph: Learn Music > Chord Graph: Learn Music (iPhone/iPad app by Lucia Gonzalez.) - Source: https://appshunter.io/ios/app/chord-graph-learn-music/id6806460224 (this page in markdown: same URL + `.md`) - Developer: [Lucia Gonzalez](https://appshunter.io/developer/6788804091) - Category: Education - Price: Free - Age rating: 4+ - Requires: iOS 15.0 · 51 MB - Languages: English - Released: 2026-10-08 - Data updated: 2026-10-11 ## What is Chord Graph? Chord Graph shows you how chords relate to each other instead of asking you to memorize it. Pick a key, play a chord, and see where it can go next. THE VISUALIZER Eleven views of the same harmony, each one for understanding something different: • Circle of fifths with four rings and the relationships drawn between them • Function tree and radial tree • Diatonic, modal, tonnetz and voicings • Progressions and modulation, with the routes from one key to another and the technique behind each step • Playground: build your own progression up to 16 steps, with next-chord suggestions, tempo and looping All 24 keys, each spelled correctly. Zoom, pan, and note names in letters or solfège. THE COURSE 90 lessons that run from what a note is all the way to modulation and modes, with piano and fretboard diagrams drawn on screen rather than shipped as images. Every lesson transposes to whatever key you are looking at. Each one ends in a quiz: you need all three right to complete it, and your best score is kept. THE TUNER A chromatic tuner through the microphone, with a gauge and stable detection. Pick your instrument and string, or leave it chromatic. The A4 reference is adjustable. THE DAILY CHALLENGE One challenge a day, the same one for everybody. A single daily attempt, plus free practice if you want to keep going. Streak, best streak, history, and a result you can share as an emoji grid, spoiler-free. LIVE MODE Plug in a MIDI keyboard and the app follows what you play on the visualizer. Without one, it listens through the microphone. ALSO • Works fully offline: there is nothing to download • Its own audio engine, with piano and plucked string • Eight languages • Light and dark themes ## Is Chord Graph safe? Not enough ratings yet to assess Chord Graph. ## Is Chord Graph legit? Chord Graph: Learn Music has limited verification signals. The AppsHunter Legitimacy Score for Chord Graph is 55 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 1 release) ### 1.0 — 2026-10-08 No release notes. ## More apps by Lucia Gonzalez - [Match Pairs: cards for kids](https://appshunter.io/ios/app/match-pairs-cards-for-kids/id6788804089) - [Dress Room: sizes & gifts](https://appshunter.io/ios/app/dress-room-sizes-and-gifts/id6788877430) - [Chore Quest: Chores for Kids](https://appshunter.io/ios/app/chore-quest-chores-for-kids/id6788958277) - [Moon Phase & Stargazing Nights](https://appshunter.io/ios/app/moon-phase-and-stargazing-nights/id6789200434) - [Celimap: gluten-free guide](https://appshunter.io/ios/app/celimap-gluten-free-guide/id6791344895) - [ISS Transit Finder & Tracker](https://appshunter.io/ios/app/iss-transit-finder-and-tracker/id6791396557) All apps by Lucia Gonzalez: https://appshunter.io/developer/6788804091 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-11.*