Lifespan by Optical cover art

Lifespan

Optical

Key
6B · B♭ major
BPM
173
Half-time
87
Open Key
11d
Energy
45/100
Pop
6/100
Length
9:21
Released
1998
Album
Lifespan / Crisis
Genre
Drum N Bass
Loudness
-11.9 dB
ISRC
GBTKW9800031

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

Lifespan: drum n bass, B♭ major (6B), 173 BPM. Tonally it lands balanced in mood. The mix is almost entirely instrumental. The master keeps real dynamic headroom. A 1998 production that still circulates in sets. Calmer than 99% of Optical's catalogue. For programming, treat it as a warm-up or breakdown cut.

Reach:
better known than 89% of Optical's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy45
Mood51Balanced
Groove50
Acoustic9
Instrumental92
Live10
Speech11

Frequency spectrum

amplitude · bass → treble

FAQ

What key is Lifespan in?

Lifespan by Optical is in B♭ major, or 6B on the Camelot wheel.

What BPM is Lifespan?

Lifespan runs at 173 BPM.

What mixes well with Lifespan?

From 6B it blends harmonically with 7B, 6A, 5B. Moving to 7B lifts the energy a step.

Is Lifespan good for peak time?

With energy 45 out of 100 at 173 BPM, it works best as a warm-up or breakdown cut.

Mixes harmonically

6B5B · 7B · 6A

From 6B, 7B (F major) lifts the energy a step; 6A (G minor) settles into the relative minor; 5B (E♭ major) cools the energy down a step.

#TrackKey·BPM

Every move from 6B

7BSimple Mix Upper
5BSimple Mix Downer
6ATonal Shift·
7ADiagonal Mix Upper
5ADiagonal Mix Downer
9ACompatible Tone·
8BHigh Energy Boost▲▲▲
4BHigh Energy Drain▼▼▼
9BParallel Key Upper▲▲
3BParallel Key Downer▼▼
1BTritone Jump▲▲
10BRelated Keyrisky

How to mix it

In 6B at 173 BPM: 7B (F major) — move to 7B to push the floor harder; 6A (G minor) — switch to 6A for a mood change without losing the groove; 5B (E♭ major) — drop to 5B to bring the room down gently.

Pitch range at ±6%: 163-183 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 1B rather than 6B; below -5% it reads as 11B. With key lock on, it stays 6B across the whole range.

Programming: a warm-up or breakdown cut — early set or after a peak to reset the room.

Similar tempo

Within ±3 BPM of 173 — beatmatch without a big tempo pull.

#TrackKey·BPM

More drum n bass

More from Optical

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 173 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

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