๐ต Music
Music Key Finder
A set of notes usually fits several major scales, so the reliable method is to score each key by how many of your notes it contains and pick the best fit. The relative minor always shares the same notes, which is why a song can be described as either.
How it works
Notes in the song (space separated)
Prefer sharps or flats
Most likely key
Notes of your set inside the scale
Confidence
Relative minor
Notes in the scale
Runner-up keys
Frequently asked questions
How do I use the Music Key Finder?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.