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Guitar scale trainer with playback

Put the shape under your fingers. Put the notes in time.

A scale diagram shows you where to play. StrumForge adds a note to follow and a tempo to work toward. Hear each note, watch it light up, and practice one position until the movement feels familiar.

Download on the App StoreGet it on Google Play

For iPhone, iPad, Android & web.

Free to start. Scale-shape playback and interactive scale practice require StrumForge Pro.

Open StrumForge in your browser
G major E-shape scale in StrumForge with interval labels, playback controls at 92 BPM, and the current note highlighted blue
G major, E shape, 92 BPM. Follow the blue note as the scale plays.
  • Note-by-note playback
  • Modes, pentatonic & blues
  • CAGED positions

Built for the way you practice

Learn the pattern. Understand what you are playing.

Use the same fretboard shape in three ways: as a route for your fingers, a set of note names, and a map of intervals. Change the labels as your attention shifts.

Follow one note at a time

Hear the scale and follow the active note on the fretboard. Start slowly enough to place each finger cleanly, then repeat the shape without rushing the string changes.

Give the notes a name

Switch between Intervals, Notes, and Fingers. Learn where the root sits, recognize the scale degrees around it, and connect the pattern to the notes you hear.

Move beyond one position

Explore modes, pentatonic and blues scales, and CAGED shapes. Repeat a single shape or use the All playback option to work through the positions.

Put it into practice

Your first five minutes with the scale trainer

  1. Choose a small target

    Open StrumForge and choose a scale in the Scale controls. Start with G major and one CAGED shape. Keep interval labels on so you can find the root.

  2. Set a comfortable pulse

    With Pro, choose a slow playback tempo and quarter notes. Follow the highlighted note through the shape. Keep each note clear before increasing the pace.

  3. Repeat, then change the view

    Loop the shape until the route feels familiar. Switch to note names, or move to the next position and find the same root notes again.

Make it your session

Take the pattern back to the music.

Once you know a shape, give it a musical job. Open a chord progression in the same key and use a few scale notes to make short phrases. Leave space, repeat an idea, and listen to how the notes sit over each chord.

Learn to practice scales over chord progressions →

Choose your starting point

Free to explore. More room with Pro.

Start free

Explore the free progression generator and standard scale diagrams to get a feel for the app.

Go further with StrumForge Pro

Unlock scale-shape playback, adjustable practice tempo, rhythmic note values, and interactive scale practice. Choose Once, Loop, or All to structure each run.

Explore the app →

A few things to know

Does the guitar scale trainer play the notes?

Yes. With StrumForge Pro, scale-shape playback sounds the notes and highlights the current note on the diagram. You can adjust the tempo, choose rhythmic note values, and repeat a shape or work through positions.

Which guitar scales can I practice?

StrumForge includes modes, pentatonic and blues scales, and CAGED scale shapes. Choose a key and scale, then switch between interval, note-name, and fingering labels.

Does it listen to my guitar or score my playing?

No. The scale trainer provides diagrams, audio playback, and visual guidance. You judge your own note clarity and timing as you play along.

Can I use it on my phone?

Yes. StrumForge is available on iPhone, iPad, Android, and the web. The app is free to start; interactive scale practice and playback require Pro.

Your next practice starts here

Make your next scale session easier to follow.

Keep the shape, the sound, and the pulse in one place. Download StrumForge and explore the fretboard at your own pace.

Download on the App StoreGet it on Google Play

Free to start. Scale-shape playback and interactive scale practice require StrumForge Pro.

Or open StrumForge on the web →