TempoPeek

Linda Ronstadt · Hasten Down the Wind

That’ll Be the Day

That’ll Be the Day is in B flat major at 125.5 beats per minute.

4080120160200

Tempo

126 BPM · Allegromedian of 174 analyses · 124.2–125.9 across the middle eight tenths
Key
B♭ major2 flats · the key most of the analyses agreed on
Agreement
94%share of analyses that agreed
Analyses
174people who ran the extractor
One beat
478.1milliseconds, 60,000 ÷ BPM
Tuning
437.5Hz · -10 cents from A 440
Dynamics
3.93dB the level wanders from its average
Loudness
0.851Essentia's 0–1 scale, not dB
Danceability
1.207Essentia'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

174 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 94% — put it in B flat major, a key signature of 2 flats. The tempo printed above is the median of the 174 readings; 95% of them land within 2% of it, and the middle eight tenths of them run from 124.2 to 125.9 BPM.

At 125.5 BPM one beat lasts 478.1 milliseconds, so a sixteenth note is 119.5 ms and a dotted eighth 358.6 ms — the delay times for this recording. Counted half as fast it is 62.8 BPM, counted twice as fast 251. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 437.5 Hz, which is 10 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 3.93 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 0.851 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 B flat 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 B♭ major

Each of these differs from B♭ 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 126 BPM

Note valueBeatsMillisecondsHertz
Whole note41912.40.52
Half note2956.21.05
Dotted quarter1.5717.11.39
Quarter note (one beat)1478.12.09
Quarter triplet0.667318.73.14
Dotted eighth0.75358.62.79
Eighth note0.52394.18
Eighth triplet0.333159.46.28
Dotted sixteenth0.375179.35.58
Sixteenth note0.25119.58.37
Sixteenth triplet0.16779.712.55
Thirty-second note0.12559.816.73

Half time 62.8 BPM · double time 251 BPM. Every row is one beat (478.1 ms) times the fraction in the second column.

Closest in key and tempo

  1. Philadelphia FreedomElton JohnB♭ major126BPM
  2. ViennaBilly JoelB♭ major125BPM
  3. Waiting for a TrainJohnny CashB♭ major126BPM
  4. Let Me Entertain YouRobbie WilliamsB♭ major125BPM
  5. Call the ManCéline DionB♭ major126BPM
  6. Untrust UsCrystal CastlesB♭ major126BPM
  7. Hey BrotherAviciiB♭ major125BPM
  8. Man! I Feel Like a Woman!Shania TwainB♭ major125BPM
  9. Cocoa Butter KissesChance the Rapper feat. Vic Mensa & TwistaB♭ major126BPM
  10. VictimsCulture ClubB♭ major126BPM

Recordings in B flat major, ordered by how near their tempo is to 126 BPM. A calculation, not a recommendation.

All songs in B flat majorAll songs at 126 BPMB♭ major at 120–129 BPMLinda Ronstadt

MusicBrainz collapses 17 recording ids into this one. Recording id 30298c5c-2899-4cf1-8d37-002169015e32.