TempoPeek

ABBA · The Album

I Wonder (Departure)

I Wonder (Departure) is in C major at 135.5 beats per minute.

4080120160200

Tempo

136 BPM · Allegromedian of 161 analyses · 135.4–135.8 across the middle eight tenths
Key
C majorno sharps and no flats · the key most of the analyses agreed on
Agreement
71%share of analyses that agreed
Analyses
161people who ran the extractor
One beat
442.8milliseconds, 60,000 ÷ BPM
Tuning
441.3Hz · +5 cents from A 440
Dynamics
5.86dB the level wanders from its average
Loudness
0.285Essentia's 0–1 scale, not dB
Danceability
0.99Essentia'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

161 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 71% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 161 readings; 99% of them land within 2% of it, and they barely differ at all.

At 135.5 BPM one beat lasts 442.8 milliseconds, so a sixteenth note is 110.7 ms and a dotted eighth 332.1 ms — the delay times for this recording. Counted half as fast it is 67.8 BPM, counted twice as fast 271. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441.3 Hz, which is 5 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 5.86 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 0.285 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 C 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 C major

Each of these differs from C 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 136 BPM

Note valueBeatsMillisecondsHertz
Whole note41771.20.56
Half note2885.61.13
Dotted quarter1.5664.21.51
Quarter note (one beat)1442.82.26
Quarter triplet0.667295.23.39
Dotted eighth0.75332.13.01
Eighth note0.5221.44.52
Eighth triplet0.333147.66.78
Dotted sixteenth0.375166.16.02
Sixteenth note0.25110.79.03
Sixteenth triplet0.16773.813.55
Thirty-second note0.12555.418.07

Half time 67.8 BPM · double time 271 BPM. Every row is one beat (442.8 ms) times the fraction in the second column.

Closest in key and tempo

  1. Burnin’ for YouBlue Öyster CultC major135BPM
  2. And So It GoesBilly JoelC major136BPM
  3. MotherPink FloydC major135BPM
  4. bad guyBillie EilishC major135BPM
  5. SatelliteCollective SoulC major136BPM
  6. Under the Milky WayThe ChurchC major136BPM
  7. La Vie en roseLouis Armstrong with Sy Oliver’s OrchestraC major136BPM
  8. Setting SunThe Chemical BrothersC major135BPM
  9. I’ll Stick AroundFoo FightersC major135BPM
  10. Bad BoyThe BeatlesC major135BPM

Recordings in C major, ordered by how near their tempo is to 136 BPM. A calculation, not a recommendation.

All songs in C majorAll songs at 136 BPMC major at 130–139 BPMABBA

MusicBrainz collapses 3 recording ids into this one. Recording id 8acc3ab6-aab7-4dd6-b4d1-9dd58fde14d1.