The Swell by Calibre cover art

The Swell

Calibre

30s preview

Key
3B · D♭ major
BPM
173
Half-time
87
Open Key
8d
Energy
36/100
Pop
6/100
Length
6:13
Released
2018
Album
4AM
Genre
Drum N Bass
Loudness
-20.8 dB
Dynamics
12.6 dB
ISRC
GBA2A1800022

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

The Swell: drum n bass, D♭ major (3B), 173 BPM. The mix is almost entirely instrumental. Its spectrum is weighted to the sub and kick, with a heavy low end. The master keeps real dynamic headroom. The master keeps unusual dynamic range for club music (crest 13 dB). A 2018 production that still circulates in sets. Calmer than 93% of Calibre's catalogue. In a set it works best as a warm-up or breakdown cut.

Groove:
less groove-driven than 89% of Calibre's catalogue
Low end:
more bass-heavy than 78% of Calibre's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy36
Mood25Dark
Groove47
Acoustic1
Instrumental85
Live26
Speech5

Frequency spectrum

amplitude · bass → treble

601252505001k2k4k8k
36%
Low
30-130 Hz
28%
Low-mid
130-570 Hz
22%
Upper-mid
570 Hz-2.5 kHz
14%
High
2.5-11 kHz

FAQ

What key is The Swell in?

The Swell by Calibre is in D♭ major, or 3B on the Camelot wheel.

What BPM is The Swell?

The Swell runs at 173 BPM.

What mixes well with The Swell?

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

Is The Swell good for peak time?

With energy 36 out of 100 at 173 BPM, it works best as a warm-up or breakdown cut.

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 173 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%: 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 10B rather than 3B; below -5% it reads as 8B. With key lock on, it stays 3B 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

#TrackKey·BPM

More from Calibre

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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