Undertow
30s preview
- BPM
- 129
- Open Key
- 6m
- Energy
- 72/100
- Pop
- 1/100
- Length
- 6:57
- Released
- 2013
- Genre
- Techno
- Loudness
- -11.1 dB
- Dynamics
- 8.3 dB
- ISRC
- BEN581300372
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
At 129 BPM in A♭ minor (1A), Undertow is a peak-time tempo techno production. 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. A 2013 production that still circulates in sets. More underground than 91% of Planetary Assault Systems's catalogue. In a set it works best as a mid-set roller.
- Tempo:
- slower than 84% of Planetary Assault Systems's catalogue
- Low end:
- more bass-heavy than 80% of Planetary Assault Systems's catalogue
- Brightness:
- brighter than 77% of Planetary Assault Systems's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 47%
- Low
- 30-130 Hz
- 30%
- Low-mid
- 130-570 Hz
- 13%
- Upper-mid
- 570 Hz-2.5 kHz
- 9%
- High
- 2.5-11 kHz
FAQ
What key is Undertow in?
Undertow by Planetary Assault Systems is in A♭ minor, or 1A on the Camelot wheel.
What BPM is Undertow?
Undertow runs at 129 BPM, a peak-time tempo track.
What mixes well with Undertow?
From 1A it blends harmonically with 2A, 1B, 12A. Moving to 2A lifts the energy a step.
Is Undertow good for peak time?
With energy 72 out of 100 at 129 BPM, it works best as a mid-set roller.
Mixes harmonically
1A → 12A · 2A · 1BFrom 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.
How to mix it
In 1A at 129 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%: 121-137 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: a mid-set roller.
Similar tempo
Within ±3 BPM of 129 — beatmatch without a big tempo pull.
More techno
More from Planetary Assault Systems
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 129 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
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