AC/DC · The Razors Edge
Rock Your Heart Out
Rock Your Heart Out is in D major at 164 beats per minute.
Tempo
164 BPM · Vivacemedian of 154 analyses · 163.9–164.1 across the middle eight tenths- Key
- D major2 sharps · the key most of the analyses agreed on
- Agreement
- 77%share of analyses that agreed
- Analyses
- 154people who ran the extractor
- One beat
- 365.9milliseconds, 60,000 ÷ BPM
- Tuning
- 434.2Hz · -23 cents from A 440
- Dynamics
- 3.13dB the level wanders from its average
- Loudness
- 0.951Essentia's 0–1 scale, not dB
- Danceability
- 1.367Essentia'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
154 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 77% — put it in D major, a key signature of 2 sharps. The tempo printed above is the median of the 154 readings; 100% of them land within 2% of it, and they barely differ at all.
At 164 BPM one beat lasts 365.9 milliseconds, so a sixteenth note is 91.5 ms and a dotted eighth 274.4 ms — the delay times for this recording. Counted half as fast it is 82 BPM, counted twice as fast 328. A score would mark that Vivace, 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 3.13 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 0.951 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 D 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 D major
Each of these differs from D 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 164 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1463.4 | 0.68 |
| Half note | 2 | 731.7 | 1.37 |
| Dotted quarter | 1.5 | 548.8 | 1.82 |
| Quarter note (one beat) | 1 | 365.9 | 2.73 |
| Quarter triplet | 0.667 | 243.9 | 4.1 |
| Dotted eighth | 0.75 | 274.4 | 3.64 |
| Eighth note | 0.5 | 182.9 | 5.47 |
| Eighth triplet | 0.333 | 122 | 8.2 |
| Dotted sixteenth | 0.375 | 137.2 | 7.29 |
| Sixteenth note | 0.25 | 91.5 | 10.93 |
| Sixteenth triplet | 0.167 | 61 | 16.4 |
| Thirty-second note | 0.125 | 45.7 | 21.87 |
Half time 82 BPM · double time 328 BPM. Every row is one beat (365.9 ms) times the fraction in the second column.
Closest in key and tempo
- GirlfriendAvril LavigneD major164BPM
- Some How Some WayJay‐Z feat. Beanie Sigel & ScarfaceD major164BPM
- Hitchin’ a RideGreen DayD major164BPM
- There’s a Moon in the Sky (Called the Moon)The B‐52sD major164BPM
- Summer ’68Pink FloydD major165BPM
- Pink MoonNick DrakeD major165BPM
- Las palabras de amor (The Words of Love)QueenD major164BPM
- Walk All Over YouAC/DCD major163BPM
- Miles From NowhereCat StevensD major163BPM
- SomedayNickelbackD major163BPM
Recordings in D major, ordered by how near their tempo is to 164 BPM. A calculation, not a recommendation.
All songs in D majorAll songs at 164 BPMD major at 160–169 BPMAC/DC
MusicBrainz collapses 2 recording ids into this one. Recording id 56529f05-99bc-4a29-9a70-31d70ba4f82a.