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WHEN I WAS OLDER

WHEN I WAS OLDER is in B minor at 150 beats per minute.

4080120160200

Tempo

150 BPM · Allegromedian of 156 analyses · 150–150 across the middle eight tenths
Key
B minor2 sharps · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
156people who ran the extractor
One beat
400milliseconds, 60,000 ÷ BPM
Tuning
434.2Hz · -23 cents from A 440
Dynamics
7.39dB the level wanders from its average
Loudness
0.677Essentia's 0–1 scale, not dB
Danceability
1.167Essentia'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

156 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in B minor, a key signature of 2 sharps. The tempo printed above is the median of the 156 readings; 100% of them land within 2% of it, and they barely differ at all.

At 150 BPM one beat lasts 400 milliseconds, so a sixteenth note is 100 ms and a dotted eighth 300 ms — the delay times for this recording. Counted half as fast it is 75 BPM, counted twice as fast 300. A score would mark that Allegro, 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 7.39 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 0.677 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 150 BPM

Note valueBeatsMillisecondsHertz
Whole note416000.63
Half note28001.25
Dotted quarter1.56001.67
Quarter note (one beat)14002.5
Quarter triplet0.667266.73.75
Dotted eighth0.753003.33
Eighth note0.52005
Eighth triplet0.333133.37.5
Dotted sixteenth0.3751506.67
Sixteenth note0.2510010
Sixteenth triplet0.16766.715
Thirty-second note0.1255020

Half time 75 BPM · double time 300 BPM. Every row is one beat (400 ms) times the fraction in the second column.

Closest in key and tempo

  1. MantraToolB minor150BPM
  2. Calm Like a BombRage Against the MachineB minor149BPM
  3. Hotel CaliforniaEaglesB minor147BPM
  4. SinnermanNina SimoneB minor147BPM
  5. Isn’t It MidnightFleetwood MacB minor145BPM
  6. Come Out and PlayOffspringB minor156BPM
  7. VökuróBjörkB minor144BPM
  8. Lucifer SamPink FloydB minor141BPM
  9. Dollars and CentsRadioheadB minor139BPM
  10. SabrosaBeastie BoysB minor162BPM

Recordings in B minor, ordered by how near their tempo is to 150 BPM. A calculation, not a recommendation.

All songs in B minorAll songs at 150 BPMBillie Eilish

MusicBrainz collapses 1 recording id into this one. Recording id fd8d46c6-efac-4fa0-bd85-9a78bec5442d.