Questions
What does Guitar Scale Finder do?
It’s a scale finder app for guitarists on iPhone, iPad and Android. Tap in the notes you know, or on iPhone and iPad play a song and let Magic Listen hear it, and it narrows 1,870 scales down to the ones that fit. For each scale it shows the notes, the chords that go with it, and where to play it on the fretboard.
Can it find the scale or key of a song?
Yes, with Magic Listen. Tap the filter button, then Magic Listen, and play a song from a speaker or a riff on your guitar. It listens until it is sure, picks out the notes, works out the key and opens the scale to play over it. If the notes fit something more unusual, it shows every scale that contains them instead. It runs on iPhone and iPad with iOS 27 or later, and the audio never leaves your device.
How do I find a scale from a few notes?
Open the filter, tap the notes you can hear or play, and the list narrows to scales that contain every one of them. The more notes you add, the shorter the list. You can also filter by root and by scale type, such as major, minor or pentatonic.
How many scales are in the app?
1,870: every scale type in the library (from major, minor and the pentatonics to the modes, harmonic and melodic minor, bebop, Hirajoshi, Byzantine and more) in every key.
What does the app show for each scale?
Its notes with their intervals (1, ♭3, 5…), the whole neck from the open strings to the 24th fret in note names or degrees, and the chords built from it, each with a Roman numeral and a shape you can play.
Can I hear the scales and chords?
Yes. Every scale has a round play button, and you can tap any note, any dot on the fretboard or any chord to hear it on a clean electric guitar. It mixes with whatever music you have playing, so you can try a scale against the song.
How much does it cost?
The app is free to download and starts with a free trial. After the trial it is a yearly subscription; the App Store shows the exact price for your country before you confirm. Cancel at least 24 hours before the trial ends in Settings › your name › Subscriptions and you pay nothing.
Do I need to read music?
No. Everything is shown as note names and dots on a fretboard, the same way guitarists already think.