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Questions about this song
Answers from our automatic transcription. Key, tempo and chord labels may contain errors.
What key is SOS by Rihanna in?
This transcription starts in F♯ minor.
What tempo is SOS?
The estimated tempo is 136 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 SOS?
Recurring four-chord sequences in this transcription include Amaj6 → D → Dmaj7/5 → Bm (41 occurrences); D → Dmaj7/5 → Bm → F♯m (41 occurrences); F♯m → Amaj6 → D → Dmaj7/5 (37 occurrences). These are exact chord-label matches within sections, not a complete harmonic analysis.
What are the relative chords in SOS?
Recurring relative progressions include i → IIImaj6 → VI → VImaj7/5 in F♯ minor; IIImaj6 → VI → VImaj7/5 → iv in F♯ minor; VI → VImaj7/5 → iv → i in F♯ 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 SOS 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 SOS in?
The transcription starts in 1/8. Later meter changes are detected at 0:00 (4/4).
How is SOS structured?
The detected sections are intro (0:00) → verse (0:14) → chorus (0:42) → verse (1:38) → chorus (2:06) → bridge (2:48) → chorus (3:02).
How long is this version of SOS?
The transcribed version lasts 3:58. Other recordings or edits may have a different duration.