Blej by Halogenix cover art
Key
1A · A♭ minor
BPM
172
Half-time
86
Open Key
6m
Energy
87/100
Pop
22/100
Length
4:45
Released
2017
Genre
Drum N Bass
Loudness
-1.6 dB
ISRC
GBVPL1900078

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

Blej is a drum n bass track in A♭ minor (1A) at 172 BPM. The feel is dark and driving. The mix is almost entirely instrumental. The master is loud and heavily compressed. A 2017 production that still circulates in sets. Better known than 87% of Halogenix's catalogue. In a set it works best as an opener or closing-set piece.

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy87
Mood16Dark
Groove66
Acoustic0
Instrumental86
Live12
Speech27

Frequency spectrum

amplitude · bass → treble

FAQ

What key is Blej in?

Blej by Halogenix is in A♭ minor, or 1A on the Camelot wheel.

What BPM is Blej?

Blej runs at 172 BPM.

What mixes well with Blej?

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

Is Blej good for peak time?

With energy 87 out of 100 at 172 BPM, it works best as an opener or closing-set piece.

Mixes harmonically

1A12A · 2A · 1B

From 1A, 2A (E♭ minor) lifts the energy a step; 1B (B major) brightens to the relative major; 12A (D♭ minor) cools the energy down a step.

#TrackKey·BPM

Every move from 1A

2ASimple Mix Upper
12ASimple Mix Downer
1BTonal Shift·
2BDiagonal Mix Upper
12BDiagonal Mix Downer
10BCompatible Tone·
3AHigh Energy Boost▲▲▲
11AHigh Energy Drain▼▼▼
4AParallel Key Upper▲▲
10AParallel Key Downer▼▼
8ATritone Jump▲▲
5ARelated Keyrisky

How to mix it

In 1A at 172 BPM: 2A (E♭ minor) — move to 2A to push the floor harder; 1B (B major) — switch to 1B for a mood change without losing the groove; 12A (D♭ minor) — drop to 12A to bring the room down gently.

Pitch range at ±6%: 162-182 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 8A rather than 1A; below -5% it reads as 6A. With key lock on, it stays 1A across the whole range.

Programming: an opener or closing-set piece.

Similar tempo

Within ±3 BPM of 172 — beatmatch without a big tempo pull.

#TrackKey·BPM

More drum n bass

#TrackKey·BPM

More from Halogenix

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 172 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.