Millennium
30s preview
- BPM
- 85
- Double-time
- 170
- Open Key
- 9d
- Energy
- 67/100
- Pop
- 0/100
- Length
- 6:15
- Released
- 1998
- Album
- Wormhole
- Genre
- Drum N Bass
- Loudness
- -8.1 dB
- Dynamics
- 15.5 dB
- ISRC
- GBTKW9890122
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
At 85 BPM in A♭ major (4B), Millennium is a downtempo drum n bass production. The feel is punchy, neutral in mood. The mix is almost entirely instrumental. Its spectrum is weighted to the sub and kick, with a heavy low end. The master keeps unusual dynamic range for club music (crest 16 dB). A 1998 production that still circulates in sets. More underground than 99% of Optical's catalogue.
- Tempo:
- slower than 97% of Optical's catalogue
- Energy:
- calmer than 89% of Optical's catalogue
- Brightness:
- brighter than 82% of Optical's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 33%
- Low
- 30-130 Hz
- 28%
- Low-mid
- 130-570 Hz
- 21%
- Upper-mid
- 570 Hz-2.5 kHz
- 18%
- High
- 2.5-11 kHz
FAQ
What key is Millennium in?
Millennium by Optical is in A♭ major, or 4B on the Camelot wheel.
What BPM is Millennium?
Millennium runs at 85 BPM, a downtempo track.
What mixes well with Millennium?
From 4B it blends harmonically with 5B, 4A, 3B. Moving to 5B lifts the energy a step.
Is Millennium good for peak time?
With energy 67 out of 100 at 85 BPM, it works best as an opener or closing-set piece.
Mixes harmonically
4B → 3B · 5B · 4AFrom 4B, 5B (E♭ major) lifts the energy a step; 4A (F minor) settles into the relative minor; 3B (D♭ major) cools the energy down a step.
How to mix it
In 4B at 85 BPM: 5B (E♭ major) — move to 5B to push the floor harder; 4A (F minor) — switch to 4A for a mood change without losing the groove; 3B (D♭ major) — drop to 3B to bring the room down gently.
Pitch range at ±6%: 80-90 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 11B rather than 4B; below -5% it reads as 9B. With key lock on, it stays 4B across the whole range.
Programming: an opener or closing-set piece.
Similar tempo
Within ±3 BPM of 85 — beatmatch without a big tempo pull.
More drum n bass
More from Optical
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 85 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.
Vibes runs this same analysis on the music you own: keys, energy and vibe for every track, organized into sets you can actually play.