
Questions about this song
Answers from our automatic transcription. Key, tempo and chord labels may contain errors.
What key is Fireflies by Owl City in?
This transcription starts in E♭ major.
What tempo is Fireflies?
The estimated tempo is 90 BPM, calculated from the median spacing between detected beats. This is a summary of the transcription; timing can vary during the song.
What are the main chord progressions in Fireflies?
Recurring four-chord sequences in this transcription include B♭ → E♭ → A♭ → B♭ (10 occurrences); E♭ → A♭ → B♭ → E♭ (10 occurrences); A♭ → B♭ → E♭ → A♭ (10 occurrences). These are exact chord-label matches within sections, not a complete harmonic analysis.
What are the relative chords in Fireflies?
Recurring relative progressions include V → I → IV → V in E♭ major; I → IV → V → I in E♭ major; IV → V → I → IV in E♭ major. Numerals refer to the key active at that point; uppercase means major and lowercase means minor. Minor keys use natural-minor scale degrees.
Does Fireflies use a well-known chord progression?
The transcription contains repeated matches to the singer-songwriter progression (vi → IV → I → V). Added tones and inversions may vary. This identifies a familiar pattern, not a claim about the song’s influences.
What time signature is Fireflies in?
The transcription starts in 4/4.
How is Fireflies structured?
The detected sections are intro (0:00) → verse (0:21) → chorus (0:42) → verse (1:04) → chorus (1:25) → verse (1:49) → chorus (2:32) → outro (3:14).
How long is this version of Fireflies?
The transcribed version lasts 3:48. Other recordings or edits may have a different duration.