TempoPeek

Boston · Boston

Peace of Mind

Peace of Mind is in E major at 127.7 beats per minute.

4080120160200

Tempo

128 BPM · Allegromedian of 144 analyses · 127.4–127.8 across the middle eight tenths
Key
E major4 sharps · the key most of the analyses agreed on
Agreement
93%share of analyses that agreed
Analyses
144people who ran the extractor
One beat
469.9milliseconds, 60,000 ÷ BPM
Tuning
440Hz · 0 cents from A 440
Dynamics
3.33dB the level wanders from its average
Loudness
0.9Essentia's 0–1 scale, not dB
Danceability
0.995Essentia'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

144 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 93% — put it in E major, a key signature of 4 sharps. The tempo printed above is the median of the 144 readings; 100% of them land within 2% of it, and they barely differ at all.

At 127.7 BPM one beat lasts 469.9 milliseconds, so a sixteenth note is 117.5 ms and a dotted eighth 352.4 ms — the delay times for this recording. Counted half as fast it is 63.9 BPM, counted twice as fast 255.4. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 440 Hz, which is 0 cents above concert A at 440 Hz — close enough to standard that a tuner would not argue. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 3.33 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 0.9 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 E 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 E major

Each of these differs from E 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 128 BPM

Note valueBeatsMillisecondsHertz
Whole note41879.40.53
Half note2939.71.06
Dotted quarter1.5704.81.42
Quarter note (one beat)1469.92.13
Quarter triplet0.667313.23.19
Dotted eighth0.75352.42.84
Eighth note0.5234.94.26
Eighth triplet0.333156.66.39
Dotted sixteenth0.375176.25.68
Sixteenth note0.25117.58.51
Sixteenth triplet0.16778.312.77
Thirty-second note0.12558.717.03

Half time 63.9 BPM · double time 255.4 BPM. Every row is one beat (469.9 ms) times the fraction in the second column.

Closest in key and tempo

  1. Here I Stand and Face the Raina‐haE major128BPM
  2. Hit Me With Your Best ShotPat BenatarE major128BPM
  3. CakeThe B‐52’sE major128BPM
  4. Danny SaysFoo FightersE major128BPM
  5. Goodbye FriendDavid Guetta feat. The ScriptE major128BPM
  6. I Can Only ImagineDavid Guetta feat. Chris Brown & Lil WayneE major128BPM
  7. Good FeelingFlo RidaE major128BPM
  8. It’s TrickyRun‐D.M.C.E major128BPM
  9. The Time (Dirty Bit)The Black Eyed PeasE major128BPM
  10. Moves Like JaggerMaroon 5 featuring Christina AguileraE major128BPM

Recordings in E major, ordered by how near their tempo is to 128 BPM. A calculation, not a recommendation.

All songs in E majorAll songs at 128 BPME major at 120–129 BPMBoston

MusicBrainz collapses 33 recording ids into this one. Recording id 773460dc-256b-4195-9d2b-ed3f9d180916.