Sing “The Hardest Part” by Olivia Dean in a Lower or Higher Key
“The Hardest Part” is a landmark soul-pop track by Olivia Dean, a former student of the famous BRIT School — and like every recording, it exists in exactly one key. Adapting it to your vocal range takes one slider: transpose it by semitones until it fits.
Why adapt “The Hardest Part” to your vocal range?
Two singers almost never need the same key for “The Hardest Part”: a bass and a soprano can be an octave apart, and even two voices in the same category rarely share the same comfortable ceiling. So the useful question is not “what key is this song in?” but “what key is this song in for me?”. The semitone slider answers it in about a minute — and once you know your number on a soul-pop track like this one, you can reuse it on everything else you sing.
On this soul-pop track, many voices land around +3 semitones — take it as a starting point, then let your ears decide.
How to change the key of “The Hardest Part” step by step
The workflow is the same in the widget above and in the full KeyPitch Audio Studio, and it works for any soul-pop track:
- Get “The Hardest Part” as a file. MP3, WAV, M4A or even an MP4 video all work — up to 50 MB and 10 minutes.
- Upload it to the KeyPitch Audio Studio. The song loads in seconds and plays right in your browser — nothing to install.
- Move the semitones slider up or down while the track plays. The key changes in real time: sing along and stop at the exact semitone where every note feels comfortable.
- Download your version. Export “The Hardest Part” in your key and practise or run your karaoke anywhere, even offline.
Tips to find your key faster
- Move one semitone at a time. Most voices settle within 1–3 semitones of the original key — beyond ±3 the sound can turn unnatural.
- Want a karaoke version? The AI Vocal Remover in the Audio Studio strips the lead vocal from “The Hardest Part”, so you can sing over a clean instrumental — in your key.
- Test at full voice, not humming. A key that feels fine when you mark the song quietly can collapse at real volume — sing “The Hardest Part” the way you would on stage before you settle on a semitone.
More songs to sing in your key
KeyPitch works with any song — here are more tracks singers transpose every day: