Sound of the Underground by Maddix cover art

Sound of the Underground

Maddix

30s preview

Key
4B · A♭ major
BPM
152
Half-time
76
Open Key
9d
Energy
96/100
Pop
57/100
Length
3:06
Released
2025
Genre
Hard Techno
Label
Extatic Records
Loudness
-6.6 dB
Dynamics
6.9 dB
ISRC
NLQ8D2500079

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

At 152 BPM in A♭ major (4B), Sound of the Underground is a fast hard techno production. Its spectrum is weighted to the sub and kick, with a heavy low end. The master is squashed flat, built for loudness (crest 7 dB). More bass-heavy than 97% of Maddix's catalogue.

Reach:
better known than 96% of Maddix's catalogue
Tempo:
faster than 83% of Maddix's catalogue
Brightness:
brighter than 78% of Maddix's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy96
Mood31Dark
Groove54
Acoustic4
Instrumental60
Live32
Speech7

Frequency spectrum

amplitude · bass → treble

601252505001k2k4k8k
40%
Low
30-130 Hz
29%
Low-mid
130-570 Hz
20%
Upper-mid
570 Hz-2.5 kHz
11%
High
2.5-11 kHz

FAQ

What key is Sound of the Underground in?

Sound of the Underground by Maddix is in A♭ major, or 4B on the Camelot wheel.

What BPM is Sound of the Underground?

Sound of the Underground runs at 152 BPM, a fast track.

What mixes well with Sound of the Underground?

From 4B it blends harmonically with 5B, 4A, 3B. Moving to 5B lifts the energy a step.

Is Sound of the Underground good for peak time?

With energy 96 out of 100 at 152 BPM, it works best as a high-intensity peak cut.

Mixes harmonically

4B3B · 5B · 4A

From 4B, 5B (E♭ major) lifts the energy a step; 4A (F minor) settles into the relative minor; 3B (D♭ major) cools the energy down a step.

Every move from 4B

5BSimple Mix Upper
3BSimple Mix Downer
4ATonal Shift·
5ADiagonal Mix Upper
3ADiagonal Mix Downer
7ACompatible Tone·
6BHigh Energy Boost▲▲▲
2BHigh Energy Drain▼▼▼
7BParallel Key Upper▲▲
1BParallel Key Downer▼▼
11BTritone Jump▲▲
8BRelated Keyrisky

How to mix it

In 4B at 152 BPM: 5B (E♭ major) — move to 5B to push the floor harder; 4A (F minor) — switch to 4A for a mood change without losing the groove; 3B (D♭ major) — drop to 3B to bring the room down gently.

Pitch range at ±6%: 143-161 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 11B rather than 4B; below -5% it reads as 9B. With key lock on, it stays 4B across the whole range.

Programming: a high-intensity peak cut.

Similar tempo

Within ±3 BPM of 152 — beatmatch without a big tempo pull.

More hard techno

More from Maddix

Full profile

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 152 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

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