Guitar Theory and Songwriting
Learn the foundational music theory of the guitar fretboard, build compelling chord progressions, and compose original songs from scratch.
Like Duolingo, but for Guitar Theory and Songwriting. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
24 levels across 3 sections, about 48 minutes end to end, roughly 10 days at five minutes a day. It moves through Playing Real Music from Day One, The Architecture of Chords and Keys, and Writing Songs and Playing Leads. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Guitar Theory and Songwriting
- Standard tuning spells E-A-D-G-B-E from thickest string to thinnest
- The low E string produces the deepest bass note in standard tuning
- Pressing a fret shortens the vibrating length of the string to raise its pitch
- A chord requires at least three distinct pitches sounding at the same time
- Two notes played together form an interval or dyad, not a complete chord
- Combining three or more notes creates a defined musical character like major or minor
- Open chords blend fretted notes with unfretted open strings near the headstock
- D major uses the open D string as its lowest note and leaves the bottom two strings unplayed
- Open chords sustain longer and sound fuller because unstopped strings vibrate freely
- Leaving a shared finger on the string or maintaining a pivot finger keeps the hand oriented
- Lifting all fingers forces the fretting hand to rebuild the entire shape from scratch in mid-air
- Smooth transitions rely on moving only the fingers that change strings
- A steady four-beat pulse gives the chord progression rhythmic structure
- Switching chords on predictable bar boundaries allows melodies to resolve naturally
- The three chords (G, C, D) provide tension and release that naturally cycles back to the home chord
- Western music contains exactly 12 unique pitches before repeating at the octave
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Guitar Theory and Songwriting the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What letters spell out the guitar's standard tuning, going from the thickest string to the thinnest?
Get it right to open this lesson and 23 more in the app.
Where Guitar Theory and Songwriting takes you
- 1
Playing Real Music from Day One
- Your First Chords and the Fretboard
- The Musical Alphabet on Strings
- 2
The Architecture of Chords and Keys
- How Chords Are Built
- The Roman Numeral System
- Unlocking the Neck with CAGED and Barres
- 3
Writing Songs and Playing Leads
- Pentatonics and Melodic Lead Playing
- Composing Song Structures and Hooks
- Rhythm Grooves and Dynamic Arrangements
3 sections · 8 units · 24 levels. Built to play, not to enroll.
You pick the voice
Guitar Theory and Songwriting is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Music on Tomo
Playing Your First Guitar Chords
Pick up the guitar and start making music right away. Learn the foundational chords, clean fretting technique, and smooth transitions that unlock hundreds of songs.
Music Theory: The Patterns Behind the Sound
Ever wonder why certain notes make you feel sad or why a chorus gets stuck in your head? Learn to decode the invisible architecture of your favorite songs.
Guitar Theory: From First Chords to Total Mastery
Stop memorizing shapes and start understanding the fretboard. Learn to play any song by ear, write your own riffs, and unlock the secrets of music theory directly on your guitar.
The Intermediate Guitarist's Toolkit
Move past basic open chords and simple scales to unlock the full fretboard. Learn to connect the neck, refine your tone, and play with professional expression.
Guitar Chords by Shape
Stop memorizing hundreds of individual dots. Learn the 'master shapes' that unlock every chord on the guitar neck using simple, movable logic.
Guitar Rhythm and Chord Fluency
Break out of rigid beginner habits and master the fretboard with confident strumming, fluid syncopation, effortless barre chords, and rich voicings that groove in any style.
Start Guitar Theory and Songwriting today.
Download Tomo, search Guitar Theory and Songwriting, and play your first lesson in under a minute.