Jack
30s preview
- Key
- 8B · C major
- BPM
- 128
- Open Key
- 1d
- Energy
- 57/100
- Pop
- 0/100
- Length
- 5:39
- Released
- 2011
- Genre
- Techno
- Loudness
- -12.5 dB
- Dynamics
- 9.8 dB
- ISRC
- USA2P2343249
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
At 128 BPM in C major (8B), Jack is a peak-time tempo techno production. The feel is dark and steady. The groove is strong and floor-ready. 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 2011 production that still circulates in sets. More underground than 99% of Truncate's catalogue.
- Energy:
- calmer than 83% of Truncate's catalogue
- Tempo:
- slower than 76% of Truncate's catalogue
- Brightness:
- brighter than 76% of Truncate's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 43%
- Low
- 30-130 Hz
- 31%
- Low-mid
- 130-570 Hz
- 14%
- Upper-mid
- 570 Hz-2.5 kHz
- 12%
- High
- 2.5-11 kHz
FAQ
What key is Jack in?
Jack by Truncate is in C major, or 8B on the Camelot wheel.
What BPM is Jack?
Jack runs at 128 BPM, a peak-time tempo track.
What mixes well with Jack?
From 8B it blends harmonically with 9B, 8A, 7B. Moving to 9B lifts the energy a step.
Is Jack good for peak time?
With energy 57 out of 100 at 128 BPM, it works best as a mid-set roller.
Mixes harmonically
8B → 7B · 9B · 8AFrom 8B, 9B (G major) lifts the energy a step; 8A (A minor) settles into the relative minor; 7B (F major) cools the energy down a step.
How to mix it
In 8B at 128 BPM: 9B (G major) — move to 9B to push the floor harder; 8A (A minor) — switch to 8A for a mood change without losing the groove; 7B (F major) — drop to 7B to bring the room down gently.
Pitch range at ±6%: 120-136 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 3B rather than 8B; below -5% it reads as 1B. With key lock on, it stays 8B across the whole range.
Programming: a mid-set roller.
Similar tempo
Within ±3 BPM of 128 — beatmatch without a big tempo pull.
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More techno
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Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 128 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
