Gas Mask
30s preview
- BPM
- 173
- Half-time
- 87
- Open Key
- 3m
- Energy
- 71/100
- Pop
- 14/100
- Length
- 8:43
- Released
- 1999
- Album
- Gas Mask / Bacteria
- Genre
- Drum N Bass
- Loudness
- -14.3 dB
- Dynamics
- 17.7 dB
- ISRC
- GBTKW9900051
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
A drum n bass cut, Gas Mask sits in B minor (10A) at 173 BPM. The feel is punchy, neutral in mood. The mix is almost entirely instrumental. The master keeps real dynamic headroom. The master keeps unusual dynamic range for club music (crest 18 dB). A 1999 production that still circulates in sets. Better known than 95% of Optical's catalogue. In a set it works best as an opener or closing-set piece.
- Energy:
- calmer than 86% of Optical's catalogue
- Groove:
- groovier than 84% of Optical's catalogue
- Brightness:
- brighter than 75% of Optical's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 31%
- Low
- 30-130 Hz
- 30%
- Low-mid
- 130-570 Hz
- 20%
- Upper-mid
- 570 Hz-2.5 kHz
- 19%
- High
- 2.5-11 kHz
FAQ
What key is Gas Mask in?
Gas Mask by Optical is in B minor, or 10A on the Camelot wheel.
What BPM is Gas Mask?
Gas Mask runs at 173 BPM.
What mixes well with Gas Mask?
From 10A it blends harmonically with 11A, 10B, 9A. Moving to 11A lifts the energy a step.
Is Gas Mask good for peak time?
With energy 71 out of 100 at 173 BPM, it works best as an opener or closing-set piece.
Mixes harmonically
10A → 9A · 11A · 10BFrom 10A, 11A (F♯ minor) lifts the energy a step; 10B (D major) brightens to the relative major; 9A (E minor) cools the energy down a step.
How to mix it
In 10A at 173 BPM: 11A (F♯ minor) — move to 11A to push the floor harder; 10B (D major) — switch to 10B for a mood change without losing the groove; 9A (E minor) — drop to 9A 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 5A rather than 10A; below -5% it reads as 3A. With key lock on, it stays 10A across the whole range.
Programming: an opener or closing-set piece.
Similar tempo
Within ±3 BPM of 173 — beatmatch without a big tempo pull.
More drum n bass
More from Optical
Full profile
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.
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