Radiohead · Amnesiac
Morning Bell/Amnesiac
Morning Bell/Amnesiac is in D major at 123.7 beats per minute.
Tempo
124 BPM · Allegromedian of 166 analyses · 123.7–123.9 across the middle eight tenths- Key
- D major2 sharps · the key most of the analyses agreed on
- Agreement
- 93%share of analyses that agreed
- Analyses
- 166people who ran the extractor
- One beat
- 485milliseconds, 60,000 ÷ BPM
- Tuning
- 441.5Hz · +6 cents from A 440
- Dynamics
- 2.58dB the level wanders from its average
- Loudness
- 0.934Essentia's 0–1 scale, not dB
- Danceability
- 1.023Essentia'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
166 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 93% — put it in D major, a key signature of 2 sharps. The tempo printed above is the median of the 166 readings; 99% of them land within 2% of it, and they barely differ at all.
At 123.7 BPM one beat lasts 485 milliseconds, so a sixteenth note is 121.3 ms and a dotted eighth 363.8 ms — the delay times for this recording. Counted half as fast it is 61.9 BPM, counted twice as fast 247.4. A score would mark that Allegro, by the ranges this site uses.
The analyses put the reference pitch of the recording at 441.5 Hz, which is 6 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 2.58 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 0.934 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 D 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 D major
Each of these differs from D 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 124 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1940.2 | 0.52 |
| Half note | 2 | 970.1 | 1.03 |
| Dotted quarter | 1.5 | 727.6 | 1.37 |
| Quarter note (one beat) | 1 | 485 | 2.06 |
| Quarter triplet | 0.667 | 323.4 | 3.09 |
| Dotted eighth | 0.75 | 363.8 | 2.75 |
| Eighth note | 0.5 | 242.5 | 4.12 |
| Eighth triplet | 0.333 | 161.7 | 6.19 |
| Dotted sixteenth | 0.375 | 181.9 | 5.5 |
| Sixteenth note | 0.25 | 121.3 | 8.25 |
| Sixteenth triplet | 0.167 | 80.8 | 12.37 |
| Thirty-second note | 0.125 | 60.6 | 16.49 |
Half time 61.9 BPM · double time 247.4 BPM. Every row is one beat (485 ms) times the fraction in the second column.
Closest in key and tempo
- ContactDaft Punk feat. DJ FalconD major124BPM
- Where Do Broken Hearts GoWhitney HoustonD major124BPM
- Can’t Take It With YouThe Alan Parsons ProjectD major124BPM
- Wake Me UpAviciiD major124BPM
- Pinball WizardThe WhoD major124BPM
- King of PainThe PoliceD major124BPM
- Stiff Upper LipAC/DCD major124BPM
- Never Talking to You Again (live)Foo FightersD major124BPM
- Hot Pants ExplosionThe B‐52’sD major124BPM
- Turn! Turn! Turn! (To Everything There Is a Season)The ByrdsD major124BPM
Recordings in D major, ordered by how near their tempo is to 124 BPM. A calculation, not a recommendation.
All songs in D majorAll songs at 124 BPMD major at 120–129 BPMRadiohead
MusicBrainz collapses 1 recording id into this one. Recording id 50d5c3f8-03d6-4d9f-a38c-5421b1c5d348.