Avril Lavigne · Under My Skin
Who Knows
Who Knows is in C major at 162.3 beats per minute.
Tempo
162 BPM · Vivacemedian of 178 analyses · 162.2–162.3 across the middle eight tenths- Key
- C majorno sharps and no flats · the key most of the analyses agreed on
- Agreement
- 98%share of analyses that agreed
- Analyses
- 178people who ran the extractor
- One beat
- 369.7milliseconds, 60,000 ÷ BPM
- Tuning
- 439.7Hz · -1 cents from A 440
- Dynamics
- 4.11dB the level wanders from its average
- Loudness
- 0.889Essentia's 0–1 scale, not dB
- Danceability
- 1.031Essentia'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
178 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 98% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 178 readings; 100% of them land within 2% of it, and they barely differ at all.
At 162.3 BPM one beat lasts 369.7 milliseconds, so a sixteenth note is 92.4 ms and a dotted eighth 277.3 ms — the delay times for this recording. Counted half as fast it is 81.2 BPM, counted twice as fast 324.6. A score would mark that Vivace, by the ranges this site uses.
The analyses put the reference pitch of the recording at 439.7 Hz, which is 1 cents below 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 4.11 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 0.889 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 162 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1478.7 | 0.68 |
| Half note | 2 | 739.4 | 1.35 |
| Dotted quarter | 1.5 | 554.5 | 1.8 |
| Quarter note (one beat) | 1 | 369.7 | 2.71 |
| Quarter triplet | 0.667 | 246.5 | 4.06 |
| Dotted eighth | 0.75 | 277.3 | 3.61 |
| Eighth note | 0.5 | 184.8 | 5.41 |
| Eighth triplet | 0.333 | 123.2 | 8.12 |
| Dotted sixteenth | 0.375 | 138.6 | 7.21 |
| Sixteenth note | 0.25 | 92.4 | 10.82 |
| Sixteenth triplet | 0.167 | 61.6 | 16.23 |
| Thirty-second note | 0.125 | 46.2 | 21.64 |
Half time 81.2 BPM · double time 324.6 BPM. Every row is one beat (369.7 ms) times the fraction in the second column.
Closest in key and tempo
- Will You Love Me Tomorrow?Carole KingC major162BPM
- The Best of TimesStyxC major162BPM
- SuperwomanAlicia KeysC major163BPM
- Bullet Proof..I Wish I WasRadioheadC major163BPM
- MississippiBob DylanC major162BPM
- Cast No ShadowOasisC major162BPM
- The Rain SongLed ZeppelinC major163BPM
- Diamonds and PearlsPrince & The New Power GenerationC major163BPM
- San Francisco Bay BluesEric ClaptonC major163BPM
- Head Over FeetAlanis MorissetteC major162BPM
Recordings in C major, ordered by how near their tempo is to 162 BPM. A calculation, not a recommendation.
All songs in C majorAll songs at 162 BPMC major at 160–169 BPMAvril Lavigne
MusicBrainz collapses 3 recording ids into this one. Recording id 9922e645-0a63-47d4-9ba0-71e1befb4003.