TempoPeek

Norah Jones · Come Away With Me

Don’t Know Why

Don’t Know Why is in B flat major at 88.5 beats per minute.

4080120160200

Tempo

89 BPM · Andantemedian of 139 analyses · 88.3–88.5 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
99%share of analyses that agreed
Analyses
139people who ran the extractor
One beat
678milliseconds, 60,000 ÷ BPM
Tuning
441.8Hz · +7 cents from A 440
Dynamics
6.89dB the level wanders from its average
Loudness
0.086Essentia's 0–1 scale, not dB
Danceability
0.901Essentia's danceability, 0–3

Source: AcousticBrainz, dump of 2022-06-23 (CC0) · MusicBrainz core data, 2026-09-17 (CC0) · how each number is measured. Measured up to 23.06.2022 — AcousticBrainz stopped collecting in 2022, so nothing released after that date is here.

What the numbers say

139 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 99% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 139 readings; 100% of them land within 2% of it, and they barely differ at all.

At 88.5 BPM one beat lasts 678 milliseconds, so a sixteenth note is 169.5 ms and a dotted eighth 508.5 ms — the delay times for this recording. Counted half as fast it is 44.3 BPM, counted twice as fast 177. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.8 Hz, which is 7 cents above concert A at 440 Hz — the sort of drift a tape machine or a slightly different mastering leaves behind. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 6.89 dB: that is how far the level wanders from its own average, so a small number means a loud, flat master and a large one means a recording that still breathes. Its average loudness is 0.086 on Essentia's 0-to-1 scale, which is not decibels and is not comparable to a streaming service's number.

10 other recordings here are in B flat major; the ones listed below are the closest in tempo.

Beats per bar are not in this dataset. AcousticBrainz's analysis reports a tempo, a key and a loudness, and no time signature at all, so this page does not print one — a 4/4 here would be a guess dressed as a measurement.

Keys that fit with B♭ major

Each of these differs from B♭ major by at most one accidental, or shares its tonic. That is the whole of what a mixing wheel encodes; here the relations are named instead of numbered.

Delay times at 89 BPM

Note valueBeatsMillisecondsHertz
Whole note42711.90.37
Half note21355.90.74
Dotted quarter1.51016.90.98
Quarter note (one beat)16781.48
Quarter triplet0.6674522.21
Dotted eighth0.75508.51.97
Eighth note0.53392.95
Eighth triplet0.3332264.43
Dotted sixteenth0.375254.23.93
Sixteenth note0.25169.55.9
Sixteenth triplet0.1671138.85
Thirty-second note0.12584.711.8

Half time 44.3 BPM · double time 177 BPM. Every row is one beat (678 ms) times the fraction in the second column.

Closest in key and tempo

  1. These Arms of MineOtis ReddingB♭ major89BPM
  2. Emenius SleepusGreen DayB♭ major89BPM
  3. O‐o‐h ChildThe Five StairstepsB♭ major89BPM
  4. Mercedes BenzJanis JoplinB♭ major88BPM
  5. You Know You’re RightNirvanaB♭ major89BPM
  6. Let ’Em InWingsB♭ major88BPM
  7. Summer WindFrank SinatraB♭ major88BPM
  8. I’ll Still Kill50 Cent feat. AkonB♭ major88BPM
  9. Return to InnocenceEnigmaB♭ major88BPM
  10. TransitionsBeastie BoysB♭ major89BPM

Recordings in B flat major, ordered by how near their tempo is to 89 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 89 BPMB♭ major at 80–89 BPMNorah Jones

MusicBrainz collapses 38 recording ids into this one. Recording id 727ab502-2691-4fbd-b9da-17e898844eff.