Works offline
Strumhold is a web app you can install straight from the browser. Drills, scoring, and your history all work with no connection.
The hard part of guitar is the change.
Strumhold drills the switch between two chords. Strum along to a steady beat, and it listens to your guitar and scores every change. Your switches get cleaner drill by drill, and your scales note by note.
Open the app Free to practice · no account needed
How a drill works
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Pick a pair
Two chords you're learning, say E minor and A minor.
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Strum with the beat
A steady count keeps you honest. Switch chords on cue and keep strumming.
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Every change gets scored
The app hears what you play, through your device's mic, a headset, or a line-in from your audio interface. Then it scores the change: did you land the new chord, in time?
Scales, minus the mountain
A scale book reads like a wall of memorising: fourteen types, twelve keys each, a dozen shapes apiece. The hand's version is far smaller, because the modes share dots. Take a shape you can already play, treat a different note as home, and you are playing Dorian: same frets, same fingers, zero new fingerings. Most of the mountain turns out to be re-hearings of shapes you already own.
So the app drills the shapes rather than the list. Every scale here fits one six-fret window your hand never leaves, and the same listening that scores your chord changes scores a scale note by note, with the chart running ahead of you: one dot lit for the note due now, the next one waiting, and the step between them named as you go.
Play over a band
The shapes above are for using. Pick a key and a shape you already know, and a band loops two chords under you while you improvise over the top. There are no new fingerings to learn and nothing to switch mid-flight.
The chart follows the chords. While the band is on C, home is C. When the chord changes to G, home moves to G: same frets, same fingers, a different note to lean on. A cue rides the last bar so the change never arrives behind your back. Over G those same dots are G Mixolydian, and while it sounds the chart names and marks the note doing most of that work: the ♭7.
One jam is free, and all of it is free: C major, C to G, on Pattern #3, at whatever tempo you set, for as long as you want to play. The limit is which jam you get, never how long or how good it is.
The band plays C
The band plays G
♭7, the Mixolydian note
Built to stay out of your way
Your practice stays yours
Everything is saved on your device. Audio is processed on the spot to score your playing, and it is never uploaded. You can export your whole history to a file whenever you want.
Sized for beginners
Open chords two at a time, scales one six-fret shape at a time. Small pieces, the ones that trip you up in real songs, practiced until they don't.
Free to practice. Subscribe when you want more.
Every drill above is free, forever, no account. Two optional subscriptions, if you want them: Sync, $2.99/month, keeps your practice in step across your devices and keeps a copy off them. Pro, $8.99/month, adds two things. Diagnosis tells you which side of each chord change needs work, and why. Jamming puts a band under you, on every chord pair in every key whose shapes and chords you've unlocked.