Chapter 9 of 9 by Tiësto cover art

Chapter 9 of 9

Tiësto

Key
9B · G major
BPM
145
Half-time
73
Open Key
2d
Energy
95/100
Pop
1/100
Length
4:31
Released
2015
Album
Burn by Tiësto (145)
Genre
Trance
Loudness
-7.1 dB
ISRC
CYA111700171

Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026

Other versions

Chapter 9 of 9: driving up-tempo trance, G major (9B), 145 BPM. The mix is almost entirely instrumental. A 2015 production that still circulates in sets. Less groove-driven than 86% of Tiësto's catalogue.

Reach:
more underground than 84% of Tiësto's catalogue
Tempo:
faster than 83% of Tiësto's catalogue
Brightness:
brighter than 81% of Tiësto's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy95
Mood49Balanced
Groove40
Acoustic18
Instrumental98
Live23
Speech3

Frequency spectrum

amplitude · bass → treble

FAQ

What key is Chapter 9 of 9 in?

Chapter 9 of 9 by Tiësto is in G major, or 9B on the Camelot wheel.

What BPM is Chapter 9 of 9?

Chapter 9 of 9 runs at 145 BPM, a driving up-tempo track.

What mixes well with Chapter 9 of 9?

From 9B it blends harmonically with 10B, 9A, 8B. Moving to 10B lifts the energy a step.

Is Chapter 9 of 9 good for peak time?

With energy 95 out of 100 at 145 BPM, it works best as a high-intensity peak cut.

Mixes harmonically

9B8B · 10B · 9A

From 9B, 10B (D major) lifts the energy a step; 9A (E minor) settles into the relative minor; 8B (C major) cools the energy down a step.

#TrackKey·BPM

Every move from 9B

10BSimple Mix Upper
8BSimple Mix Downer
9ATonal Shift·
10ADiagonal Mix Upper
8ADiagonal Mix Downer
12ACompatible Tone·
11BHigh Energy Boost▲▲▲
7BHigh Energy Drain▼▼▼
12BParallel Key Upper▲▲
6BParallel Key Downer▼▼
4BTritone Jump▲▲
1BRelated Keyrisky

How to mix it

In 9B at 145 BPM: 10B (D major) — move to 10B to push the floor harder; 9A (E minor) — switch to 9A for a mood change without losing the groove; 8B (C major) — drop to 8B to bring the room down gently.

Pitch range at ±6%: 136-154 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 4B rather than 9B; below -5% it reads as 2B. With key lock on, it stays 9B across the whole range.

Programming: a high-intensity peak cut.

Similar tempo

Within ±3 BPM of 145 — beatmatch without a big tempo pull.

#TrackKey·BPM

More trance

#TrackKey·BPM

More from Tiësto

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 145 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

Every insight on this page, for your own library.

Vibes runs this same analysis on the music you own: keys, energy and vibe for every track, organized into sets you can actually play.