Danny Brown · Old

Side B (Dope Song)

Side B (Dope Song) is in B flat minor at 79.8 beats per minute.

Tempo

80 BPM · Andantemedian of 156 analyses · 79.8–162 across the middle eight tenths

Key: B♭ minor5 flats · the key most of the analyses agreed on
Agreement: 89%share of analyses that agreed
Analyses: 156people who ran the extractor
One beat: 751.9milliseconds, 60,000 ÷ BPM
Tuning: 434.2Hz · -23 cents from A 440
Dynamics: 4.68dB the level wanders from its average
Loudness: 0.433Essentia's 0–1 scale, not dB
Danceability: 1.067Essentia'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

156 independent analyses of this recording were submitted to AcousticBrainz. Most of them — 89% — put it in B flat minor, a key signature of 5 flats. The tempo printed above is the median of the 156 readings; 62% of them land within 2% of it, and the middle eight tenths of them run from 79.8 to 162 BPM.

At 79.8 BPM one beat lasts 751.9 milliseconds, so a sixteenth note is 188 ms and a dotted eighth 563.9 ms — the delay times for this recording. Counted half as fast it is 39.9 BPM, counted twice as fast 159.6. A score would mark that Andante, by the ranges this site uses.

The analyses put the reference pitch of the recording at 434.2 Hz, which is 23 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 4.68 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 0.433 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 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 B♭ minor

Each of these differs from B♭ 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 80 BPM

Note value	Beats	Milliseconds	Hertz
Whole note	4	3007.5	0.33
Half note	2	1503.8	0.66
Dotted quarter	1.5	1127.8	0.89
Quarter note (one beat)	1	751.9	1.33
Quarter triplet	0.667	501.3	2
Dotted eighth	0.75	563.9	1.77
Eighth note	0.5	375.9	2.66
Eighth triplet	0.333	250.6	3.99
Dotted sixteenth	0.375	282	3.55
Sixteenth note	0.25	188	5.32
Sixteenth triplet	0.167	125.3	7.98
Thirty-second note	0.125	94	10.64

Half time 39.9 BPM · double time 159.6 BPM. Every row is one beat (751.9 ms) times the fraction in the second column.

Closest in key and tempo

Recordings in B flat minor, ordered by how near their tempo is to 80 BPM. A calculation, not a recommendation.

All songs in B flat minor All songs at 80 BPM B♭ minor at 70–79 BPM Danny Brown

MusicBrainz collapses 1 recording id into this one. Recording id e8636476-7138-4cb9-90dd-594405124167.