Hallelujah — Jeff Buckley
“Hallelujah” by Jeff Buckley is in C major, and the commonly cited lead-vocal range is C3–F4 — 17 semitones — which rates medium for an untrained voice.
Leonard Cohen's hymn, in the version most people now mean: Buckley keeps the written range barely over an octave and makes the song entirely about breath control, dynamics and sustained quiet head-mix. It is one of the most singable ranges in the catalog and one of the hardest songs to sing well, because there is nothing to hide behind.
Figures are the commonly cited range and published key for the studio version (Musicnotes original-key arrangement of the Buckley version, sounding C3–F4 in C major; some sources cite F#4 at the top), not lab measurements. No lyrics or melody are reproduced here — this page is about what the song demands of a voice.
A song's written range and its singer's full range are different facts — the library page shows what the artist can do beyond this song.
This song asks for C3–F4. Take the free range test and this page will tell you whether it sits inside your voice — and by how much when it does not.
The song library has public-domain songs you can sing along to with live pitch feedback, and guided warmups that extend range.