Flashback by The Chemical Brothers cover art

30s preview

Key
1B · B major
BPM
140
Half-time
70
Open Key
6d
Energy
98/100
Pop
0/100
Length
5:21
Released
1999
Album
Hey Boy Hey Girl
Genre
Big Beat
Loudness
-4.2 dB
Dynamics
12.1 dB
ISRC
GBAAA9900309

Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026

Other versions

At 140 BPM in B major (1B), Flashback is a driving up-tempo big beat production. It is vocal-led. The master is loud and heavily compressed. The master keeps unusual dynamic range for club music (crest 12 dB). A 1999 production that still circulates in sets. More underground than 99% of The Chemical Brothers's catalogue. In a set it works best as a peak-time weapon.

Energy:
hotter than 88% of The Chemical Brothers's catalogue
Tempo:
faster than 83% of The Chemical Brothers's catalogue
Low end:
more treble-tilted than 83% of The Chemical Brothers's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy98
Mood33Dark
Groove46
Acoustic1
Instrumental0
Live12
Speech4

Frequency spectrum

amplitude · bass → treble

601252505001k2k4k8k
30%
Low
30-130 Hz
27%
Low-mid
130-570 Hz
24%
Upper-mid
570 Hz-2.5 kHz
19%
High
2.5-11 kHz

FAQ

What key is Flashback in?

Flashback by The Chemical Brothers is in B major, or 1B on the Camelot wheel.

What BPM is Flashback?

Flashback runs at 140 BPM, a driving up-tempo track.

What mixes well with Flashback?

From 1B it blends harmonically with 2B, 1A, 12B. Moving to 2B lifts the energy a step.

Is Flashback good for peak time?

With energy 98 out of 100 at 140 BPM, it works best as a peak-time weapon.

Mixes harmonically

1B12B · 2B · 1A

From 1B, 2B (F♯ major) lifts the energy a step; 1A (A♭ minor) settles into the relative minor; 12B (E major) cools the energy down a step.

#TrackKey·BPM

Every move from 1B

2BSimple Mix Upper
12BSimple Mix Downer
1ATonal Shift·
2ADiagonal Mix Upper
12ADiagonal Mix Downer
4ACompatible Tone·
3BHigh Energy Boost▲▲▲
11BHigh Energy Drain▼▼▼
4BParallel Key Upper▲▲
10BParallel Key Downer▼▼
8BTritone Jump▲▲
5BRelated Keyrisky

How to mix it

In 1B at 140 BPM: 2B (F♯ major) — move to 2B to push the floor harder; 1A (A♭ minor) — switch to 1A for a mood change without losing the groove; 12B (E major) — drop to 12B to bring the room down gently.

Pitch range at ±6%: 132-148 BPM — anything in that window beatmatches without sounding stretched.

Key on the fader: without key lock (Master Tempo on CDJs), above roughly +5% it plays a semitone higher, so treat it as 8B rather than 1B; below -5% it reads as 6B. With key lock on, it stays 1B across the whole range.

Programming: a peak-time weapon — save it for the main stretch (energy 98/100).

Similar tempo

Within ±3 BPM of 140 — beatmatch without a big tempo pull.

#TrackKey·BPM

More big beat

#TrackKey·BPM

More from The Chemical Brothers

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 140 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

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