Chapter 4 of 9
- BPM
- 140
- Half-time
- 70
- Open Key
- 8d
- Energy
- 97/100
- Pop
- 7/100
- Length
- 3:39
- Released
- 2015
- Album
- Burn by Tiësto (140)
- Genre
- Trance
- Loudness
- -5.5 dB
- ISRC
- CYA111700292
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
Other versions
- Chapter 4 of 9original4A · 145
- Chapter 4 of 9original4A · 160
- Chapter 4 of 9original4A · 180
- Chapter 4 of 9original3B · 175
- Chapter 4 of 9original4A · 95
- Chapter 4 of 9original4A · 170
Chapter 4 of 9 is a driving up-tempo trance track in D♭ major (3B) at 140 BPM. Tonally it lands dark and driving. It leans atmospheric over strictly danceable. The mix is almost entirely instrumental. A 2015 production that still circulates in sets. Hotter than 88% of Tiësto's catalogue. In a set it works best as a peak-time weapon.
- Groove:
- less groove-driven than 85% of Tiësto's catalogue
- Tempo:
- faster than 79% of Tiësto's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
FAQ
What key is Chapter 4 of 9 in?
Chapter 4 of 9 by Tiësto is in D♭ major, or 3B on the Camelot wheel.
What BPM is Chapter 4 of 9?
Chapter 4 of 9 runs at 140 BPM, a driving up-tempo track.
What mixes well with Chapter 4 of 9?
From 3B it blends harmonically with 4B, 3A, 2B. Moving to 4B lifts the energy a step.
Is Chapter 4 of 9 good for peak time?
With energy 97 out of 100 at 140 BPM, it works best as a peak-time weapon.
Mixes harmonically
3B → 2B · 4B · 3AFrom 3B, 4B (A♭ major) lifts the energy a step; 3A (B♭ minor) settles into the relative minor; 2B (F♯ major) cools the energy down a step.
How to mix it
In 3B at 140 BPM: 4B (A♭ major) — move to 4B to push the floor harder; 3A (B♭ minor) — switch to 3A for a mood change without losing the groove; 2B (F♯ major) — drop to 2B 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 10B rather than 3B; below -5% it reads as 8B. With key lock on, it stays 3B across the whole range.
Programming: a peak-time weapon — save it for the main stretch (energy 97/100).
Similar tempo
Within ±3 BPM of 140 — beatmatch without a big tempo pull.
More trance
More from Tiësto
Full profile
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.
Every insight on this page, for your own library.
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