So Blue by Calibre cover art

So Blue

Calibre

Key
5A · C minor
BPM
175
Half-time
88
Open Key
10m
Energy
57/100
Pop
0/100
Length
5:25
Released
2008
Album
Overflow
Genre
Drum N Bass
Loudness
-11.9 dB
ISRC
GBZSD0800047

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

So Blue runs 175 BPM in C minor (5A), a drum n bass record. The feel is bright and easy. The mix is almost entirely instrumental. The master keeps real dynamic headroom. A 2008 production that still circulates in sets. More underground than 99% of Calibre's catalogue. In a set it works best as an opener or closing-set piece.

Brightness:
brighter than 84% of Calibre's catalogue
Energy:
calmer than 77% of Calibre's catalogue
Groove:
less groove-driven than 75% of Calibre's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy57
Mood74Bright
Groove56
Acoustic1
Instrumental82
Live8
Speech6

Frequency spectrum

amplitude · bass → treble

FAQ

What key is So Blue in?

So Blue by Calibre is in C minor, or 5A on the Camelot wheel.

What BPM is So Blue?

So Blue runs at 175 BPM.

What mixes well with So Blue?

From 5A it blends harmonically with 6A, 5B, 4A. Moving to 6A lifts the energy a step.

Is So Blue good for peak time?

With energy 57 out of 100 at 175 BPM, it works best as an opener or closing-set piece.

Mixes harmonically

5A4A · 6A · 5B

From 5A, 6A (G minor) lifts the energy a step; 5B (E♭ major) brightens to the relative major; 4A (F minor) cools the energy down a step.

#TrackKey·BPM

Every move from 5A

6ASimple Mix Upper
4ASimple Mix Downer
5BTonal Shift·
6BDiagonal Mix Upper
4BDiagonal Mix Downer
2BCompatible Tone·
7AHigh Energy Boost▲▲▲
3AHigh Energy Drain▼▼▼
8AParallel Key Upper▲▲
2AParallel Key Downer▼▼
12ATritone Jump▲▲
9ARelated Keyrisky

How to mix it

In 5A at 175 BPM: 6A (G minor) — move to 6A to push the floor harder; 5B (E♭ major) — switch to 5B for a mood change without losing the groove; 4A (F minor) — drop to 4A to bring the room down gently.

Pitch range at ±6%: 164-186 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 12A rather than 5A; below -5% it reads as 10A. With key lock on, it stays 5A across the whole range.

Programming: an opener or closing-set piece.

Similar tempo

Within ±3 BPM of 175 — 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 175 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

Every insight on this page, for your own library.

Vibes runs this same analysis on the music you own: keys, energy and vibe for every track, organized into sets you can actually play.