Vocal range of Firework by Katy Perry
- Original key
- Ab
- Range
- Ab3 – Eb5
Firework spans 1 octave and 7 semitones. In the original key it fits a alto voice without changes.
The best key for each voice type
Computed from the song's range and typical comfortable ranges. Capo positions use open chord shapes.
| Voice | Sing it in | Change | Guitar | Notes you'll sing |
|---|---|---|---|---|
| Bass | Ab | an octave down | Capo 1, G shapes | G#2 – D#4 |
| Baritone | A | 11 semitones down | A shapes, no capo | A2 – E4 |
| Tenor | F | 3 semitones down | Capo 1, E shapes | F3 – C5 |
| Alto | Ab | original key | Capo 1, G shapes | G#3 – D#5 |
| Mezzo-soprano | A | 1 semitone up | A shapes, no capo | A3 – E5 |
| Soprano | F | 9 semitones up | Capo 1, E shapes | F4 – C6 |
Voice types are a rough guide: your own range can sit higher or lower than your type.
Find the right key for your voice
Voice types are a rough guide. Take the two-minute range test and this page will show the key for your exact range…
Questions about Firework
What is the vocal range of Firework?
Firework by Katy Perry goes from Ab3 to Eb5, a span of 1 octave and 7 semitones.
What key is Firework in?
The original recording is in Ab.
What key should a man sing Firework in?
Bass: Ab; Baritone: A; Tenor: F.
What key should a woman sing Firework in?
Alto: Ab; Mezzo-soprano: A; Soprano: F.
Songs with a similar range
- Hero Mariah Carey · G#3–E5
- My Heart Will Go On Celine Dion · A3–Eb5
- Reflection Christina Aguilera · A3–Eb5
- Burn Hamilton · A3–D5
- Don't Start Now Dua Lipa · A3–D5
- The Power of Love Celine Dion · Bb3–Eb5
Sources: Musicnotes · Hooktheory · checked 2026-10-31 · how we measure