TempoPeek

The Beatles · Revolver

Doctor Robert

Doctor Robert is in A major at 163.6 beats per minute.

4080120160200

Tempo

164 BPM · Vivacemedian of 243 analyses · 163.5–163.8 across the middle eight tenths
Key
A major3 sharps · the key most of the analyses agreed on
Agreement
97%share of analyses that agreed
Analyses
243people who ran the extractor
One beat
366.7milliseconds, 60,000 ÷ BPM
Tuning
435.7Hz · -17 cents from A 440
Dynamics
2.83dB the level wanders from its average
Loudness
0.962Essentia's 0–1 scale, not dB
Danceability
1.16Essentia'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

243 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 97% — put it in A major, a key signature of 3 sharps. The tempo printed above is the median of the 243 readings; 100% of them land within 2% of it, and they barely differ at all.

At 163.6 BPM one beat lasts 366.7 milliseconds, so a sixteenth note is 91.7 ms and a dotted eighth 275.1 ms — the delay times for this recording. Counted half as fast it is 81.8 BPM, counted twice as fast 327.2. A score would mark that Vivace, by the ranges this site uses.

The analyses put the reference pitch of the recording at 435.7 Hz, which is 17 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 2.83 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 0.962 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 A 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 A major

Each of these differs from A 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 164 BPM

Note valueBeatsMillisecondsHertz
Whole note414670.68
Half note2733.51.36
Dotted quarter1.5550.11.82
Quarter note (one beat)1366.72.73
Quarter triplet0.667244.54.09
Dotted eighth0.75275.13.64
Eighth note0.5183.45.45
Eighth triplet0.333122.28.18
Dotted sixteenth0.375137.57.27
Sixteenth note0.2591.710.91
Sixteenth triplet0.16761.116.36
Thirty-second note0.12545.821.81

Half time 81.8 BPM · double time 327.2 BPM. Every row is one beat (366.7 ms) times the fraction in the second column.

Closest in key and tempo

  1. Black DogLed ZeppelinA major164BPM
  2. Let’s Spend the Night TogetherDavid BowieA major164BPM
  3. Rip It UpJetA major164BPM
  4. Church on SundayGreen DayA major164BPM
  5. ParanoidBlack SabbathA major163BPM
  6. M+M’sblink‐182A major163BPM
  7. Trapped Under IceMetallicaA major163BPM
  8. Soul OneBlind MelonA major163BPM
  9. That I Would Be GoodAlanis MorissetteA major164BPM
  10. The Girl Is MineMichael Jackson with Paul McCartneyA major163BPM

Recordings in A major, ordered by how near their tempo is to 164 BPM. A calculation, not a recommendation.

All songs in A majorAll songs at 164 BPMA major at 160–169 BPMThe Beatles

MusicBrainz collapses 12 recording ids into this one. Recording id 59e6487b-6c90-4e2a-82db-2e6a75afdb7e.