Funktion by Optical cover art

Funktion

Optical

30s preview

Key
3B · D♭ major
BPM
88
Double-time
176
Open Key
8d
Energy
94/100
Pop
29/100
Length
7:34
Released
1998
Album
Funktion / Naked Lunch
Genre
Drum N Bass
Loudness
-2.8 dB
Dynamics
14.0 dB
ISRC
GBCEQ1400117

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

Funktion is a downtempo drum n bass track in D♭ major (3B) at 88 BPM. Tonally it lands punchy, neutral in mood. The mix is almost entirely instrumental. The master is loud and heavily compressed. The master keeps unusual dynamic range for club music (crest 14 dB). A 1998 production that still circulates in sets. Better known than 99% of Optical's catalogue. For programming, treat it as a floor-filler.

Groove:
groovier than 90% of Optical's catalogue
Low end:
more treble-tilted than 88% of Optical's catalogue
Tempo:
slower than 86% of Optical's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy94
Mood54Balanced
Groove70
Acoustic4
Instrumental78
Live25
Speech6

Frequency spectrum

amplitude · bass → treble

601252505001k2k4k8k
26%
Low
30-130 Hz
29%
Low-mid
130-570 Hz
24%
Upper-mid
570 Hz-2.5 kHz
20%
High
2.5-11 kHz

FAQ

What key is Funktion in?

Funktion by Optical is in D♭ major, or 3B on the Camelot wheel.

What BPM is Funktion?

Funktion runs at 88 BPM, a downtempo track.

What mixes well with Funktion?

From 3B it blends harmonically with 4B, 3A, 2B. Moving to 4B lifts the energy a step.

Is Funktion good for peak time?

With energy 94 out of 100 at 88 BPM, it works best as a floor-filler.

Mixes harmonically

3B2B · 4B · 3A

From 3B, 4B (A♭ major) lifts the energy a step; 3A (B♭ minor) settles into the relative minor; 2B (F♯ major) cools the energy down a step.

#TrackKey·BPM

Every move from 3B

4BSimple Mix Upper
2BSimple Mix Downer
3ATonal Shift·
4ADiagonal Mix Upper
2ADiagonal Mix Downer
6ACompatible Tone·
5BHigh Energy Boost▲▲▲
1BHigh Energy Drain▼▼▼
6BParallel Key Upper▲▲
12BParallel Key Downer▼▼
10BTritone Jump▲▲
7BRelated Keyrisky

How to mix it

In 3B at 88 BPM: 4B (A♭ major) — move to 4B to push the floor harder; 3A (B♭ minor) — switch to 3A for a mood change without losing the groove; 2B (F♯ major) — drop to 2B to bring the room down gently.

Pitch range at ±6%: 83-93 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 10B rather than 3B; below -5% it reads as 8B. With key lock on, it stays 3B across the whole range.

Programming: a floor-filler.

Similar tempo

Within ±3 BPM of 88 — beatmatch without a big tempo pull.

#TrackKey·BPM

More drum n bass

#TrackKey·BPM

More from Optical

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 88 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

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