Louis Armstrong & Duke Ellington · The Great Reunion

The Mooche

The Mooche is in G minor at 108.1 beats per minute.

Tempo

108 BPM · Moderatomedian of 136 analyses · 107.6–108.2 across the middle eight tenths

Key: G minor2 flats · the key most of the analyses agreed on
Agreement: 96%share of analyses that agreed
Analyses: 136people who ran the extractor
One beat: 555milliseconds, 60,000 ÷ BPM
Tuning: 441Hz · +4 cents from A 440
Dynamics: 5.09dB the level wanders from its average
Loudness: 0.821Essentia's 0–1 scale, not dB
Danceability: 1.097Essentia'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

136 independent analyses of this recording were submitted to AcousticBrainz. All but a handful of them — 96% — put it in G minor, a key signature of 2 flats. The tempo printed above is the median of the 136 readings; 100% of them land within 2% of it, and they barely differ at all.

At 108.1 BPM one beat lasts 555 milliseconds, so a sixteenth note is 138.8 ms and a dotted eighth 416.3 ms — the delay times for this recording. Counted half as fast it is 54.1 BPM, counted twice as fast 216.2. A score would mark that Moderato, by the ranges this site uses.

The analyses put the reference pitch of the recording at 441 Hz, which is 4 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 5.09 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 0.821 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 G 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 G minor

Each of these differs from G 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 108 BPM

Note value	Beats	Milliseconds	Hertz
Whole note	4	2220.2	0.45
Half note	2	1110.1	0.9
Dotted quarter	1.5	832.6	1.2
Quarter note (one beat)	1	555	1.8
Quarter triplet	0.667	370	2.7
Dotted eighth	0.75	416.3	2.4
Eighth note	0.5	277.5	3.6
Eighth triplet	0.333	185	5.41
Dotted sixteenth	0.375	208.1	4.8
Sixteenth note	0.25	138.8	7.21
Sixteenth triplet	0.167	92.5	10.81
Thirty-second note	0.125	69.4	14.41

Half time 54.1 BPM · double time 216.2 BPM. Every row is one beat (555 ms) times the fraction in the second column.

Closest in key and tempo

Recordings in G minor, ordered by how near their tempo is to 108 BPM. A calculation, not a recommendation.

All songs in G minor All songs at 108 BPM G minor at 100–109 BPM

MusicBrainz collapses 2 recording ids into this one. Recording id 8634874a-5a77-49ad-9a5f-e9c6fe79b78e.