Deep Purple · Fireball
The Mule
The Mule is in D major at 147.2 beats per minute.
Tempo
147 BPM · Allegromedian of 160 analyses · 135.4–147.7 across the middle eight tenths- Key
- D major2 sharps · the key most of the analyses agreed on
- Agreement
- 45%share of analyses that agreed
- Analyses
- 160people who ran the extractor
- One beat
- 407.6milliseconds, 60,000 ÷ BPM
- Tuning
- 439.2Hz · -3 cents from A 440
- Dynamics
- 4.44dB the level wanders from its average
- Loudness
- 0.494Essentia's 0–1 scale, not dB
- Danceability
- 1.14Essentia'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
160 independent analyses of this recording were submitted to AcousticBrainz. Fewer than half of them — 45% — put it in D major, a key signature of 2 sharps. The tempo printed above is the median of the 160 readings; 70% of them land within 2% of it, and the middle eight tenths of them run from 135.4 to 147.7 BPM.
At 147.2 BPM one beat lasts 407.6 milliseconds, so a sixteenth note is 101.9 ms and a dotted eighth 305.7 ms — the delay times for this recording. Counted half as fast it is 73.6 BPM, counted twice as fast 294.4. A score would mark that Allegro, by the ranges this site uses.
The analyses put the reference pitch of the recording at 439.2 Hz, which is 3 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 4.44 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 0.494 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 147 BPM
| Note value | Beats | Milliseconds | Hertz |
|---|---|---|---|
| Whole note | 4 | 1630.4 | 0.61 |
| Half note | 2 | 815.2 | 1.23 |
| Dotted quarter | 1.5 | 611.4 | 1.64 |
| Quarter note (one beat) | 1 | 407.6 | 2.45 |
| Quarter triplet | 0.667 | 271.7 | 3.68 |
| Dotted eighth | 0.75 | 305.7 | 3.27 |
| Eighth note | 0.5 | 203.8 | 4.91 |
| Eighth triplet | 0.333 | 135.9 | 7.36 |
| Dotted sixteenth | 0.375 | 152.9 | 6.54 |
| Sixteenth note | 0.25 | 101.9 | 9.81 |
| Sixteenth triplet | 0.167 | 67.9 | 14.72 |
| Thirty-second note | 0.125 | 51 | 19.63 |
Half time 73.6 BPM · double time 294.4 BPM. Every row is one beat (407.6 ms) times the fraction in the second column.
Closest in key and tempo
- Out of TearsThe Rolling StonesD major147BPM
- Fake Plastic TreesRadioheadD major147BPM
- Love Will Tear Us ApartJoy DivisionD major147BPM
- Eon Blue ApocalypseToolD major147BPM
- Always on My MindWillie NelsonD major147BPM
- Sally MacLennaneThe PoguesD major148BPM
- Annie’s SongJohn DenverD major147BPM
- Tiny VesselsDeath Cab for CutieD major147BPM
- Slave to LoveBryan FerryD major148BPM
- Soul LoveDavid BowieD major147BPM
Recordings in D major, ordered by how near their tempo is to 147 BPM. A calculation, not a recommendation.
All songs in D majorAll songs at 147 BPMD major at 140–149 BPMDeep Purple
MusicBrainz collapses 36 recording ids into this one. Recording id 8a852f4c-b880-4d2a-8437-017c16912224.