TempoPeek

Imagination · In the Heat of the Night

Just an Illusion

Just an Illusion is in B minor at 104.5 beats per minute.

4080120160200

Tempo

105 BPM · Andantemedian of 133 analyses · 102.9–105.1 across the middle eight tenths
Key
B minor2 sharps · the key most of the analyses agreed on
Agreement
96%share of analyses that agreed
Analyses
133people who ran the extractor
One beat
574.2milliseconds, 60,000 ÷ BPM
Tuning
447.2Hz · +28 cents from A 440
Dynamics
4.39dB the level wanders from its average
Loudness
0.886Essentia's 0–1 scale, not dB
Danceability
1.484Essentia'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

133 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 96% — put it in B minor, a key signature of 2 sharps. The tempo printed above is the median of the 133 readings; 99% of them land within 2% of it, and the middle eight tenths of them run from 102.9 to 105.1 BPM.

At 104.5 BPM one beat lasts 574.2 milliseconds, so a sixteenth note is 143.5 ms and a dotted eighth 430.6 ms — the delay times for this recording. Counted half as fast it is 52.3 BPM, counted twice as fast 209. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 447.2 Hz, which is 28 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 4.39 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 0.886 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 B minor; 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 B minor

Each of these differs from B minor 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 105 BPM

Note valueBeatsMillisecondsHertz
Whole note42296.70.44
Half note21148.30.87
Dotted quarter1.5861.21.16
Quarter note (one beat)1574.21.74
Quarter triplet0.667382.82.61
Dotted eighth0.75430.62.32
Eighth note0.5287.13.48
Eighth triplet0.333191.45.23
Dotted sixteenth0.375215.34.64
Sixteenth note0.25143.56.97
Sixteenth triplet0.16795.710.45
Thirty-second note0.12571.813.93

Half time 52.3 BPM · double time 209 BPM. Every row is one beat (574.2 ms) times the fraction in the second column.

Closest in key and tempo

  1. SoloClean Bandit feat. Demi LovatoB minor105BPM
  2. Could You Be LovedBob Marley & The WailersB minor103BPM
  3. Pyramid SongRadioheadB minor106BPM
  4. Typical MaleTina TurnerB minor106BPM
  5. The WindowThriceB minor106BPM
  6. Ain’t Nobody but MeSupertrampB minor102BPM
  7. StarshineGorillazB minor108BPM
  8. Who KnewEminemB minor101BPM
  9. Love Is All We NeedCéline DionB minor108BPM
  10. The PowerSnap!B minor109BPM

Recordings in B minor, ordered by how near their tempo is to 105 BPM. A calculation, not a recommendation.

All songs in B minorAll songs at 105 BPMB minor at 100–109 BPM

MusicBrainz collapses 150 recording ids into this one. Recording id 4f6056f3-4467-4c5b-9857-0a2d5f6ab7c1.