Pete Townshend · Empty Glass

Let My Love Open the Door

Let My Love Open the Door is in C major at 164.6 beats per minute.

4080120160200

Tempo

165 BPM · Vivacemedian of 130 analyses · 156.3–164.9 across the middle eight tenths
Key
C majorno sharps and no flats · the key most of the analyses agreed on
Agreement
87%share of analyses that agreed
Analyses
130people who ran the extractor
One beat
364.5milliseconds, 60,000 ÷ BPM
Tuning
440.5Hz · +2 cents from A 440
Dynamics
5.58dB the level wanders from its average
Loudness
0.815Essentia's 0–1 scale, not dB
Danceability
1.098Essentia'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

130 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 87% — put it in C major, a key signature of no sharps and no flats. The tempo printed above is the median of the 130 readings; 86% of them land within 2% of it, and the middle eight tenths of them run from 156.3 to 164.9 BPM.

At 164.6 BPM one beat lasts 364.5 milliseconds, so a sixteenth note is 91.1 ms and a dotted eighth 273.4 ms — the delay times for this recording. Counted half as fast it is 82.3 BPM, counted twice as fast 329.2. A score would mark that Vivace, by the ranges this site uses.

The analyses put the reference pitch of the recording at 440.5 Hz, which is 2 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 5.58 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 0.815 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 165 BPM

Note valueBeatsMillisecondsHertz
Whole note41458.10.69
Half note27291.37
Dotted quarter1.5546.81.83
Quarter note (one beat)1364.52.74
Quarter triplet0.6672434.12
Dotted eighth0.75273.43.66
Eighth note0.5182.35.49
Eighth triplet0.333121.58.23
Dotted sixteenth0.375136.77.32
Sixteenth note0.2591.110.97
Sixteenth triplet0.16760.816.46
Thirty-second note0.12545.621.95

Half time 82.3 BPM · double time 329.2 BPM. Every row is one beat (364.5 ms) times the fraction in the second column.

Closest in key and tempo

  1. Stairway to HeavenLed ZeppelinC major165BPM
  2. Don’t Forget to RememberBee GeesC major165BPM
  3. Can’t Get It Out of My HeadElectric Light OrchestraC major165BPM
  4. ZombieThe CranberriesC major165BPM
  5. Unwashed and Somewhat Slightly DazedDavid BowieC major164BPM
  6. See‐SawPink FloydC major165BPM
  7. Nine Million BicyclesKatie MeluaC major164BPM
  8. Bad Side of the MoonElton JohnC major164BPM
  9. A Pair Of Brown EyesThe PoguesC major165BPM
  10. Lucy in the Sky With DiamondsElton JohnC major164BPM

Recordings in C major, ordered by how near their tempo is to 165 BPM. A calculation, not a recommendation.

All songs in C majorAll songs at 165 BPMC major at 160–169 BPM

MusicBrainz collapses 16 recording ids into this one. Recording id 580d0f33-90e3-422a-a254-f0c821b7c50d.