Aerosmith · Get a Grip

Crazy

Crazy is in D major at 162.5 beats per minute.

4080120160200

Tempo

163 BPM · Vivacemedian of 380 analyses · 162.4–162.7 across the middle eight tenths
Key
D major2 sharps · the key most of the analyses agreed on
Agreement
94%share of analyses that agreed
Analyses
380people who ran the extractor
One beat
369.2milliseconds, 60,000 ÷ BPM
Tuning
441Hz · +4 cents from A 440
Dynamics
3.05dB the level wanders from its average
Loudness
0.949Essentia's 0–1 scale, not dB
Danceability
1.232Essentia'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

380 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 94% — put it in D major, a key signature of 2 sharps. The tempo printed above is the median of the 380 readings; 95% of them land within 2% of it, and they barely differ at all.

At 162.5 BPM one beat lasts 369.2 milliseconds, so a sixteenth note is 92.3 ms and a dotted eighth 276.9 ms — the delay times for this recording. Counted half as fast it is 81.3 BPM, counted twice as fast 325. A score would mark that Vivace, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441 Hz, which is 4 cents above 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 3.05 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 0.949 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 163 BPM

Note valueBeatsMillisecondsHertz
Whole note41476.90.68
Half note2738.51.35
Dotted quarter1.5553.81.81
Quarter note (one beat)1369.22.71
Quarter triplet0.667246.24.06
Dotted eighth0.75276.93.61
Eighth note0.5184.65.42
Eighth triplet0.333123.18.13
Dotted sixteenth0.375138.57.22
Sixteenth note0.2592.310.83
Sixteenth triplet0.16761.516.25
Thirty-second note0.12546.221.67

Half time 81.3 BPM · double time 325 BPM. Every row is one beat (369.2 ms) times the fraction in the second column.

The same title by somebody else

  1. CrazyGnarls BarkleyC minor112BPM

Matched on the title alone, so this list can hold a different song that happens to share a name. Nothing here claims one is a cover of the other.

Closest in key and tempo

  1. Melt My Heart to StoneAdeleD major163BPM
  2. I Can’t Quit You BabyLed ZeppelinD major163BPM
  3. DreamingBlondieD major162BPM
  4. She Came In Through the Bathroom WindowThe BeatlesD major163BPM
  5. The MiddleJimmy Eat WorldD major162BPM
  6. SparkleAretha FranklinD major162BPM
  7. Belfast ChildSimple MindsD major162BPM
  8. Roll Over BeethovenThe BeatlesD major163BPM
  9. One Way or AnotherBlondieD major163BPM
  10. RemedyAdeleD major163BPM

Recordings in D major, ordered by how near their tempo is to 163 BPM. A calculation, not a recommendation.

All songs in D majorAll songs at 163 BPMD major at 160–169 BPMAerosmith

MusicBrainz collapses 24 recording ids into this one. Recording id 48ade205-8866-49ab-aeee-1de90b25e688.