Drop in a rock or pop track. Get its key and the scales that will sound right when you solo over it.
Aminor
Solo in A minor pentatonic, box 1 starts at the 5th fret.
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Box 1 · frets 5–8
Bar height shows how much of each note the track contains (strongest = full height). Darker bars are in the selected scale; amber is the key's root.
Solo Key Finder listens to a rock or pop song and tells you its key and the scales that fit, so you know where to play a guitar solo. Paste a link from Spotify, Apple Music or YouTube, or drop in an audio file.
You get the key, the best scale to start with, other scales that suit the song, and every note on a guitar fretboard with the box position to play in. It's free, needs no account, and installs on your phone as an app.
Paste the song's Spotify, Apple Music or YouTube link, or drop in the audio file. The app measures how strongly each of the 12 notes sounds in the music and compares that with all 24 major and minor keys to find the closest match.
Start with the scale marked Best bet: usually the minor pentatonic for a song in a minor key, or the major pentatonic for a major key. The blues scale, natural minor, Dorian and Mixolydian are suggested when they suit the song's chords.
Most rock and pop songs come out right. Relative keys such as A minor and C major share the same notes, so they can be close; the app tells you when that happens, and the suggested scales work for both. Link lookups use a 30-second preview, so for songs that change key, drop in the full audio file.
Many rock bands tune down a half step, so a song written in E sounds in E♭. The app reports the pitch you actually hear: tune your guitar down to match, or play the same shapes one fret lower.
No. Audio files are analysed in your browser and never leave your device. For links, the site fetches a 30-second preview to analyse. The privacy statement has the details.
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