IOK-1
30s preview
- Key
- 1B · B major
- BPM
- 149
- Half-time
- 75
- Open Key
- 6d
- Energy
- 63/100
- Pop
- 2/100
- Length
- 4:11
- Released
- 2022
- Album
- The Universe: Galaxy 1
- Genre
- Techno
- Label
- Axis
- Loudness
- -10.7 dB
- Dynamics
- 9.9 dB
- ISRC
- USAX10000528
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
Other versions
- IOK-4original4B · 96
IOK-1 runs 149 BPM in B major (1B), a fast techno record. The feel is dark and driving. 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. Less groove-driven than 96% of Jeff Mills's catalogue. In a set it works best as a high-intensity peak cut.
- Low end:
- more bass-heavy than 92% of Jeff Mills's catalogue
- Tempo:
- faster than 89% of Jeff Mills's catalogue
- Brightness:
- darker than 79% of Jeff Mills's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 45%
- Low
- 30-130 Hz
- 31%
- Low-mid
- 130-570 Hz
- 21%
- Upper-mid
- 570 Hz-2.5 kHz
- 2%
- High
- 2.5-11 kHz
FAQ
What key is IOK-1 in?
IOK-1 by Jeff Mills is in B major, or 1B on the Camelot wheel.
What BPM is IOK-1?
IOK-1 runs at 149 BPM, a fast track.
What mixes well with IOK-1?
From 1B it blends harmonically with 2B, 1A, 12B. Moving to 2B lifts the energy a step.
Is IOK-1 good for peak time?
With energy 63 out of 100 at 149 BPM, it works best as a high-intensity peak cut.
Mixes harmonically
1B → 12B · 2B · 1AFrom 1B, 2B (F♯ major) lifts the energy a step; 1A (A♭ minor) settles into the relative minor; 12B (E major) cools the energy down a step.
How to mix it
In 1B at 149 BPM: 2B (F♯ major) — move to 2B to push the floor harder; 1A (A♭ minor) — switch to 1A for a mood change without losing the groove; 12B (E major) — drop to 12B to bring the room down gently.
Pitch range at ±6%: 140-158 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 8B rather than 1B; below -5% it reads as 6B. With key lock on, it stays 1B across the whole range.
Programming: a high-intensity peak cut.
Similar tempo
Within ±3 BPM of 149 — beatmatch without a big tempo pull.
More techno
More from Jeff Mills
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 149 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
