The System (interlude)
- BPM
- 140
- Half-time
- 70
- Open Key
- 4m
- Energy
- 49/100
- Pop
- 0/100
- Length
- 4:45
- Released
- 2007
- Genre
- Trance
- Loudness
- -10.4 dB
- ISRC
- GBGAL0700007
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
The System (interlude): driving up-tempo trance, F♯ minor (11A), 140 BPM. The mix is almost entirely instrumental. The master keeps real dynamic headroom. A 2007 production that still circulates in sets. Darker than 99% of John O'Callaghan's catalogue. In a set it works best as a high-intensity peak cut.
- Reach:
- more underground than 99% of John O'Callaghan's catalogue
- Groove:
- less groove-driven than 98% of John O'Callaghan's catalogue
- Energy:
- calmer than 94% of John O'Callaghan's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
FAQ
What key is The System (interlude) in?
The System (interlude) by John O'Callaghan is in F♯ minor, or 11A on the Camelot wheel.
What BPM is The System (interlude)?
The System (interlude) runs at 140 BPM, a driving up-tempo track.
What mixes well with The System (interlude)?
From 11A it blends harmonically with 12A, 11B, 10A. Moving to 12A lifts the energy a step.
Is The System (interlude) good for peak time?
With energy 49 out of 100 at 140 BPM, it works best as a high-intensity peak cut.
Mixes harmonically
11A → 10A · 12A · 11BFrom 11A, 12A (D♭ minor) lifts the energy a step; 11B (A major) brightens to the relative major; 10A (B minor) cools the energy down a step.
How to mix it
In 11A at 140 BPM: 12A (D♭ minor) — move to 12A to push the floor harder; 11B (A major) — switch to 11B for a mood change without losing the groove; 10A (B minor) — drop to 10A to bring the room down gently.
Pitch range at ±6%: 132-148 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 6A rather than 11A; below -5% it reads as 4A. With key lock on, it stays 11A across the whole range.
Programming: a high-intensity peak cut.
Similar tempo
Within ±3 BPM of 140 — beatmatch without a big tempo pull.
More trance
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Full profile
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Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 140 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
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