How to use the song key finder
- Add your comfortable notes. If you’ve taken the vocal range test in this browser, they’re already filled in.
- Add the song’s lowest and highest notes. A songbook or chart will show them, or you can sing them into the pitch checker. You can also start from a singer’s usual notes.
- Read the answer. It tells you how many semitones to move the song, and whether to sing it an octave away.
How it works it out
The finder lines up the middle of the song with the middle of your notes. A key change of more than six semitones is the same as a smaller one in the other direction plus an octave, so it gives you the smaller move and tells you about the octave separately. For example, many men sing songs by women an octave lower, without changing the key at all.
If the song spans more notes than your comfortable range, no key will fit all of it. The finder tells you so. Sing the far notes lightly, or leave them out while you learn. Read more in how to find the right key for a song.
How to actually change the key
- With a backing track or player: look for a key or pitch control, and move it by the number of semitones shown.
- With a guitar: a capo raises the key one semitone per fret. To go lower, use easier chord shapes with a capo higher up.
- With a pianist or karaoke machine: tell them the number of semitones. Many karaoke systems have a key button.
- In Singbud: bring a song and Bud places it in your key for you.
Rather not do this by hand?
Bring a song you love to Singbud, and Bud puts it in your key and teaches it line by line.
Questions
How do I find the right key for my voice?
Compare the song’s lowest and highest notes with your comfortable notes, then move the song so the two line up. This tool does the sums and tells you how many semitones to move it.
How many semitones should I move a song?
As few as it takes for the whole melody to feel comfortable. If moving it more than six semitones looks right, try singing it an octave away and moving it a smaller amount instead.
Does changing the key make a song easier?
Often, yes. A song that feels impossibly high in one key can sit comfortably a few semitones lower. The distance the melody travels doesn’t change, though, so a very wide song stays demanding.
Where do the singers’ notes come from?
They show where that singer’s best-known songs usually sit, from our singer pages. A particular song may go higher or lower, so use its own notes if you can find them.
Do you need my microphone?
No. This tool only does the arithmetic on the notes you choose. Nothing leaves your browser.
Last reviewed November 2026.