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New Released in April 2026
Should I Learn Music Theory for Guitar?
Should I learn music theory for guitar? Yes, but not before playing, and not all of it. Five small ideas explain most of what guitarists do every day, and they are easiest to learn while you are already playing chords.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
Before or alongside?
Alongside. Theory learned before you can play has nothing to stick to. Start playing open chords first; after a few weeks, every idea below will explain something your hands already know, and that is when it sticks.
The five ideas that matter
- Note names on the 6th and 5th strings: they name every barre and power chord.
- Major vs minor: one note, the 3rd, decides the mood.
- The major scale: seven notes that build every key.
- Chords in a key: why G, C, D and Em belong together.
- Numbers (I, IV, V): the same song in any key.
Should I Learn Music Theory for Guitar?
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps.
Play the demoWhat you can skip for now
Modes, advanced harmony and reading on the staff can wait. They help some styles, but you can play for years without them. Learn them when a song you love needs them.
A painless way to start
ChordRunner can keep the chords inside a key you choose, so a round in G major sends only G, Am, Bm, C, D, Em and F#dim. Playing them on your guitar through the microphone turns "chords in a key" from a rule into a sound you know.
The levels in ChordRunner
- Beginner: major, minor, augmented and diminished chords.
- Intermediate: adds sus2 and sus4.
- Advanced: adds 6th, 7th and 9th chords.
- Pro: adds 11th, 13th and altered chords; an adaptive mode adds the next family when you are ready.
Common questions
Should I learn music theory for guitar?
Yes, a little and alongside playing: note names on the low strings, major and minor, the major scale, chords in a key and chord numbers.
Should I learn music theory before guitar?
No. Start playing first and add theory after a few weeks, when it can explain shapes you already know.
Can you play guitar without knowing theory?
Yes, many players do. Theory just makes learning songs, changing key and finding chords by ear faster.
Which instruments work?
A USB MIDI keyboard, detected automatically, or a piano or guitar through the microphone. Everything runs in Chrome or Edge on a computer, tablet or phone.
How is this different from apps where you tap the screen?
Tapping trains your eyes and fingers on glass. Here you press real keys or fret real strings, and the game hears the actual notes, so what you practise is exactly what you will play on your instrument.
Is everything in the demo?
The demo has limited content. Advanced features are in ChordRunner Premium.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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