The B‐52s · Whammy!

Legal Tender

Legal Tender is in F sharp major at 148.7 beats per minute.

Tempo

149 BPM · Allegromedian of 179 analyses · 98.5–148.7 across the middle eight tenths

Key: F♯ major6 sharps · the key most of the analyses agreed on
Agreement: 100%share of analyses that agreed
Analyses: 179people who ran the extractor
One beat: 403.5milliseconds, 60,000 ÷ BPM
Tuning: 442Hz · +8 cents from A 440
Dynamics: 3.87dB the level wanders from its average
Loudness: 0.931Essentia's 0–1 scale, not dB
Danceability: 1.363Essentia'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

179 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in F sharp major, a key signature of 6 sharps. The tempo printed above is the median of the 179 readings; 88% of them land within 2% of it, and the middle eight tenths of them run from 98.5 to 148.7 BPM.

At 148.7 BPM one beat lasts 403.5 milliseconds, so a sixteenth note is 100.9 ms and a dotted eighth 302.6 ms — the delay times for this recording. Counted half as fast it is 74.4 BPM, counted twice as fast 297.4. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 442 Hz, which is 8 cents above 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 3.87 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 0.931 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 F sharp 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 F♯ major

Each of these differs from F♯ 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 149 BPM

Note value	Beats	Milliseconds	Hertz
Whole note	4	1614	0.62
Half note	2	807	1.24
Dotted quarter	1.5	605.2	1.65
Quarter note (one beat)	1	403.5	2.48
Quarter triplet	0.667	269	3.72
Dotted eighth	0.75	302.6	3.3
Eighth note	0.5	201.7	4.96
Eighth triplet	0.333	134.5	7.44
Dotted sixteenth	0.375	151.3	6.61
Sixteenth note	0.25	100.9	9.91
Sixteenth triplet	0.167	67.2	14.87
Thirty-second note	0.125	50.4	19.83

Half time 74.4 BPM · double time 297.4 BPM. Every row is one beat (403.5 ms) times the fraction in the second column.

Closest in key and tempo

Recordings in F sharp major, ordered by how near their tempo is to 149 BPM. A calculation, not a recommendation.

All songs in F sharp major All songs at 149 BPM F♯ major at 140–149 BPM The B‐52s

MusicBrainz collapses 5 recording ids into this one. Recording id 1349c0d3-88ce-4b35-a195-8b8fe7e25a45.