TempoPeek

Led Zeppelin · Led Zeppelin III

Hats Off to (Roy) Harper

Hats Off to (Roy) Harper is in C major at 112.8 beats per minute.

4080120160200

Tempo

113 BPM · Moderatomedian of 249 analyses · 108.6–117 across the middle eight tenths
Key
C majorno sharps and no flats · the key most of the analyses agreed on
Agreement
64%share of analyses that agreed
Analyses
249people who ran the extractor
One beat
531.9milliseconds, 60,000 ÷ BPM
Tuning
453.4Hz · +52 cents from A 440
Dynamics
2.68dB the level wanders from its average
Loudness
0.887Essentia's 0–1 scale, not dB
Danceability
1.019Essentia'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

249 independent analyses of this recording were submitted to AcousticBrainz. A bare majority of them — 64% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 249 readings; 78% of them land within 2% of it, and the middle eight tenths of them run from 108.6 to 117 BPM.

At 112.8 BPM one beat lasts 531.9 milliseconds, so a sixteenth note is 133 ms and a dotted eighth 398.9 ms — the delay times for this recording. Counted half as fast it is 56.4 BPM, counted twice as fast 225.6. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 453.4 Hz, which is 52 cents above concert A at 440 Hz — far enough that playing along at 440 Hz will sound wrong. That is a fact about this transfer of the music, not about how it was played.

The dynamic complexity of the recording measures 2.68 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 0.887 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 113 BPM

Note valueBeatsMillisecondsHertz
Whole note42127.70.47
Half note21063.80.94
Dotted quarter1.5797.91.25
Quarter note (one beat)1531.91.88
Quarter triplet0.667354.62.82
Dotted eighth0.75398.92.51
Eighth note0.52663.76
Eighth triplet0.333177.35.64
Dotted sixteenth0.375199.55.01
Sixteenth note0.251337.52
Sixteenth triplet0.16788.711.28
Thirty-second note0.12566.515.04

Half time 56.4 BPM · double time 225.6 BPM. Every row is one beat (531.9 ms) times the fraction in the second column.

Closest in key and tempo

  1. The Grand Vizier’s Garden Party, Part 1: EntranceNick MasonC major113BPM
  2. Wrote a Song for EveryoneCreedence Clearwater RevivalC major113BPM
  3. HatefulThe ClashC major113BPM
  4. Walking AloneGreen DayC major113BPM
  5. MistakesAndra DayC major113BPM
  6. I’m Your AngelCéline Dion duet with R. KellyC major113BPM
  7. My Shining HourJohn ColtraneC major113BPM
  8. Drink in My HandEric ChurchC major113BPM
  9. Heartache TonightEaglesC major113BPM
  10. These Are the Days of Our LivesQueenC major113BPM

Recordings in C major, ordered by how near their tempo is to 113 BPM. A calculation, not a recommendation.

All songs in C majorAll songs at 113 BPMC major at 110–119 BPMLed Zeppelin

MusicBrainz collapses 2 recording ids into this one. Recording id dc7dc185-0f78-4422-841e-0c381826e0f2.