The Beatles · The Beatles
Glass Onion
Glass Onion is in F major at 120.9 beats per minute.
Tempo
121 BPM · Allegromedian of 281 analyses · 120.8–121.2 across the middle eight tenths- Key
- F major1 flat · the key most of the analyses agreed on
- Agreement
- 83%share of analyses that agreed
- Analyses
- 281people who ran the extractor
- One beat
- 496.3milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 4.62dB the level wanders from its average
- Loudness
- 0.877Essentia's 0–1 scale, not dB
- Danceability
- 1.11Essentia'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
281 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 83% — put it in F major, a key signature of 1 flat. The tempo printed above is the median of the 281 readings; 90% of them land within 2% of it, and they barely differ at all.
At 120.9 BPM one beat lasts 496.3 milliseconds, so a sixteenth note is 124.1 ms and a dotted eighth 372.2 ms — the delay times for this recording. Counted half as fast it is 60.5 BPM, counted twice as fast 241.8. A score would mark that Allegro, by the ranges this site uses.
The analyses put the reference pitch of the recording at 434.2 Hz, which is 23 cents below 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 4.62 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 0.877 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 F 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 F major
Each of these differs from F 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 121 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1985.1 | 0.5 |
| Half note | 2 | 992.6 | 1.01 |
| Dotted quarter | 1.5 | 744.4 | 1.34 |
| Quarter note (one beat) | 1 | 496.3 | 2.02 |
| Quarter triplet | 0.667 | 330.9 | 3.02 |
| Dotted eighth | 0.75 | 372.2 | 2.69 |
| Eighth note | 0.5 | 248.1 | 4.03 |
| Eighth triplet | 0.333 | 165.4 | 6.05 |
| Dotted sixteenth | 0.375 | 186.1 | 5.37 |
| Sixteenth note | 0.25 | 124.1 | 8.06 |
| Sixteenth triplet | 0.167 | 82.7 | 12.09 |
| Thirty-second note | 0.125 | 62 | 16.12 |
Half time 60.5 BPM · double time 241.8 BPM. Every row is one beat (496.3 ms) times the fraction in the second column.
Closest in key and tempo
- Goodbye Yellow Brick RoadElton JohnF major121BPM
- (Love Is) The Tender TrapFrank SinatraF major121BPM
- Don’t Leave Me This WayThelma HoustonF major121BPM
- Not FairLily AllenF major121BPM
- DreamsFleetwood MacF major120BPM
- The Living Daylightsa‐haF major120BPM
- Lost CauseBeckF major120BPM
- Suburban WarArcade FireF major120BPM
- Smoke AgainChance the Rapper feat. Ab‐SoulF major120BPM
- NightvisionDaft PunkF major120BPM
Recordings in F major, ordered by how near their tempo is to 121 BPM. A calculation, not a recommendation.
All songs in F majorAll songs at 121 BPMF major at 120–129 BPMThe Beatles
MusicBrainz collapses 35 recording ids into this one. Recording id 053d552a-1718-42d0-82e8-2fdcc2d5b30e.