Red Hot Chili Peppers · Blood Sugar Sex Magik
Sir Psycho Sexy
Sir Psycho Sexy is in A minor at 154.4 beats per minute.
Tempo
154 BPM · Allegromedian of 152 analyses · 154.3–154.5 across the middle eight tenths- Key
- A minorno sharps and no flats · the key most of the analyses agreed on
- Agreement
- 70%share of analyses that agreed
- Analyses
- 152people who ran the extractor
- One beat
- 388.6milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 3.78dB the level wanders from its average
- Loudness
- 0.945Essentia's 0–1 scale, not dB
- Danceability
- 1.493Essentia'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
152 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 70% — put it in A minor, a key signature of no sharps and no flats. The tempo printed above is the median of the 152 readings; 99% of them land within 2% of it, and they barely differ at all.
At 154.4 BPM one beat lasts 388.6 milliseconds, so a sixteenth note is 97.2 ms and a dotted eighth 291.5 ms — the delay times for this recording. Counted half as fast it is 77.2 BPM, counted twice as fast 308.8. 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 3.78 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 0.945 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 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 A minor
Each of these differs from A 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 154 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1554.4 | 0.64 |
| Half note | 2 | 777.2 | 1.29 |
| Dotted quarter | 1.5 | 582.9 | 1.72 |
| Quarter note (one beat) | 1 | 388.6 | 2.57 |
| Quarter triplet | 0.667 | 259.1 | 3.86 |
| Dotted eighth | 0.75 | 291.5 | 3.43 |
| Eighth note | 0.5 | 194.3 | 5.15 |
| Eighth triplet | 0.333 | 129.5 | 7.72 |
| Dotted sixteenth | 0.375 | 145.7 | 6.86 |
| Sixteenth note | 0.25 | 97.2 | 10.29 |
| Sixteenth triplet | 0.167 | 64.8 | 15.44 |
| Thirty-second note | 0.125 | 48.6 | 20.59 |
Half time 77.2 BPM · double time 308.8 BPM. Every row is one beat (388.6 ms) times the fraction in the second column.
Closest in key and tempo
- Who by FireLeonard CohenA minor155BPM
- Une colombeCéline DionA minor155BPM
- It Could Be SweetPortisheadA minor154BPM
- WelcomeChristina AguileraA minor155BPM
- BlackPearl JamA minor154BPM
- Wooden ShipsCrosby, Stills & NashA minor155BPM
- Those ShoesEaglesA minor155BPM
- So Much Trouble in the WorldBob Marley & The WailersA minor155BPM
- Ain’t No SunshineBill WithersA minor155BPM
- SaraBob DylanA minor156BPM
Recordings in A minor, ordered by how near their tempo is to 154 BPM. A calculation, not a recommendation.
All songs in A minorAll songs at 154 BPMA minor at 150–159 BPMRed Hot Chili Peppers
MusicBrainz collapses 14 recording ids into this one. Recording id 25d31f56-654f-4223-99fc-5b520c7fb3b7.