TempoPeek

The Alan Parsons Project · I Robot

I Robot

I Robot is in C major at 90.5 beats per minute.

4080120160200

Tempo

91 BPM · Andantemedian of 193 analyses · 90.4–90.9 across the middle eight tenths
Key
C majorno sharps and no flats · the key most of the analyses agreed on
Agreement
90%share of analyses that agreed
Analyses
193people who ran the extractor
One beat
663milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
6dB the level wanders from its average
Loudness
0.753Essentia's 0–1 scale, not dB
Danceability
1.325Essentia'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

193 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 90% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 193 readings; 100% of them land within 2% of it, and they barely differ at all.

At 90.5 BPM one beat lasts 663 milliseconds, so a sixteenth note is 165.7 ms and a dotted eighth 497.2 ms — the delay times for this recording. Counted half as fast it is 45.3 BPM, counted twice as fast 181. A score would mark that Andante, 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 6 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 0.753 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 C 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 C major

Each of these differs from C 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 91 BPM

Note valueBeatsMillisecondsHertz
Whole note42651.90.38
Half note213260.75
Dotted quarter1.5994.51.01
Quarter note (one beat)16631.51
Quarter triplet0.6674422.26
Dotted eighth0.75497.22.01
Eighth note0.5331.53.02
Eighth triplet0.3332214.53
Dotted sixteenth0.375248.64.02
Sixteenth note0.25165.76.03
Sixteenth triplet0.167110.59.05
Thirty-second note0.12582.912.07

Half time 45.3 BPM · double time 181 BPM. Every row is one beat (663 ms) times the fraction in the second column.

Closest in key and tempo

  1. In the Sweet By and ByJohnny CashC major90BPM
  2. Best of My LoveEaglesC major90BPM
  3. The BendsRadioheadC major90BPM
  4. WhyAnnie LennoxC major91BPM
  5. (Forever) Live and Die (7″ mix)Orchestral Manoeuvres in the DarkC major90BPM
  6. Universal TravelerAirC major91BPM
  7. LoreleiCocteau TwinsC major91BPM
  8. LonelyAkonC major90BPM
  9. The Game of LoveDaft PunkC major90BPM
  10. HurtJohnny CashC major91BPM

Recordings in C major, ordered by how near their tempo is to 91 BPM. A calculation, not a recommendation.

All songs in C majorAll songs at 91 BPMC major at 90–99 BPMThe Alan Parsons Project

MusicBrainz collapses 3 recording ids into this one. Recording id d574946b-b1b0-4f27-a90e-1273bb3b3075.