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Forward/Backward

Forward/Backward is in D minor at 123 beats per minute.

4080120160200

Tempo

123 BPM · Allegromedian of 197 analyses · 123–123 across the middle eight tenths
Key
D minor1 flat · the key most of the analyses agreed on
Agreement
100%share of analyses that agreed
Analyses
197people who ran the extractor
One beat
487.8milliseconds, 60,000 ÷ BPM
Tuning
437.7Hz · -9 cents from A 440
Dynamics
4.65dB the level wanders from its average
Loudness
0.5Essentia's 0–1 scale, not dB
Danceability
1.057Essentia'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

197 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 100% — put it in D minor, a key signature of 1 flat. The tempo printed above is the median of the 197 readings; 100% of them land within 2% of it, and they barely differ at all.

At 123 BPM one beat lasts 487.8 milliseconds, so a sixteenth note is 122 ms and a dotted eighth 365.9 ms — the delay times for this recording. Counted half as fast it is 61.5 BPM, counted twice as fast 246. A score would mark that Allegro, by the ranges this site uses.

The analyses put the reference pitch of the recording at 437.7 Hz, which is 9 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 4.65 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 0.5 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 minor; 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 minor

Each of these differs from D minor 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 123 BPM

Note valueBeatsMillisecondsHertz
Whole note41951.20.51
Half note2975.61.02
Dotted quarter1.5731.71.37
Quarter note (one beat)1487.82.05
Quarter triplet0.667325.23.08
Dotted eighth0.75365.92.73
Eighth note0.5243.94.1
Eighth triplet0.333162.66.15
Dotted sixteenth0.375182.95.47
Sixteenth note0.251228.2
Sixteenth triplet0.16781.312.3
Thirty-second note0.1256116.4

Half time 61.5 BPM · double time 246 BPM. Every row is one beat (487.8 ms) times the fraction in the second column.

Closest in key and tempo

  1. Hooker With a PenisToolD minor123BPM
  2. O Green WorldGorillazD minor123BPM
  3. Missing (Todd Terry club mix)Everything but the GirlD minor123BPM
  4. Love ResurrectionAlison MoyetD minor123BPM
  5. The Gold BugThe Alan Parsons ProjectD minor123BPM
  6. St. JohnAerosmithD minor122BPM
  7. Back to BlackAmy WinehouseD minor124BPM
  8. Sunny AfternoonThe KinksD minor124BPM
  9. Impressive InstantMadonnaD minor124BPM
  10. Just a Little Bit of LoveCéline DionD minor122BPM

Recordings in D minor, ordered by how near their tempo is to 123 BPM. A calculation, not a recommendation.

All songs in D minorAll songs at 123 BPMD minor at 120–129 BPMApparat

MusicBrainz collapses 1 recording id into this one. Recording id 1351b61d-3952-4387-b294-c835c29615fb.