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Questions about this song
Answers from our automatic transcription. Key, tempo and chord labels may contain errors.
What key is Last Friday Night (T.G.I.F.) by Katy Perry in?
This transcription starts in E♭ minor.
What tempo is Last Friday Night (T.G.I.F.)?
The estimated tempo is 125 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 Last Friday Night (T.G.I.F.)?
Recurring four-chord sequences in this transcription include C♭ → A♭m → E♭m7 → D♭ (28 occurrences). These are exact chord-label matches within sections, not a complete harmonic analysis.
What are the relative chords in Last Friday Night (T.G.I.F.)?
Recurring relative progressions include VI → iv → i7 → VII in E♭ minor. Numerals refer to the key active at that point; uppercase means major and lowercase means minor. Minor keys use natural-minor scale degrees.
Does Last Friday Night (T.G.I.F.) use a well-known chord progression?
No repeated match to the familiar patterns checked was found in this transcription. That does not mean the progression is unique or uncommon.
What time signature is Last Friday Night (T.G.I.F.) in?
The transcription starts in 4/4.
How is Last Friday Night (T.G.I.F.) structured?
The detected sections are intro (0:00) → verse (0:07) → pre-chorus (0:22) → chorus (0:38) → verse (1:23) → pre-chorus (1:39) → chorus (1:54) → bridge (2:40) → interlude (2:55) → chorus (3:10).
How long is this version of Last Friday Night (T.G.I.F.)?
The transcribed version lasts 3:50. Other recordings or edits may have a different duration.