Blue September
- Key
- 9B · G major
- BPM
- 90
- Double-time
- 180
- Open Key
- 2d
- Energy
- 49/100
- Pop
- 25/100
- Length
- 5:09
- Released
- 2019
- Genre
- Minimal
- Loudness
- -13.1 dB
- ISRC
- DEL021979030
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
Blue September: slow-groove tempo minimal, G major (9B), 90 BPM. The mix is almost entirely instrumental. The master keeps real dynamic headroom. Slower than 97% of Trentemøller's catalogue. In a set it works best as an opener or closing-set piece.
- Reach:
- better known than 89% of Trentemøller's catalogue
- Brightness:
- darker than 77% of Trentemøller's catalogue
- Groove:
- less groove-driven than 76% of Trentemøller's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
FAQ
What key is Blue September in?
Blue September by Trentemøller is in G major, or 9B on the Camelot wheel.
What BPM is Blue September?
Blue September runs at 90 BPM, a slow-groove tempo track.
What mixes well with Blue September?
From 9B it blends harmonically with 10B, 9A, 8B. Moving to 10B lifts the energy a step.
Is Blue September good for peak time?
With energy 49 out of 100 at 90 BPM, it works best as an opener or closing-set piece.
Mixes harmonically
9B → 8B · 10B · 9AFrom 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.
How to mix it
In 9B at 90 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%: 85-95 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: an opener or closing-set piece.
Similar tempo
Within ±3 BPM of 90 — beatmatch without a big tempo pull.
More minimal
More from Trentemøller
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 90 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
