21
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
Other versions
- 21 (Remastered 2023)original3B · 126
- 21 - V2 Dubversion3B · 124
- 21 - DJ Hyperactive Remixremix8B · 126
At 126 BPM in D♭ major (3B), 21 is a club-tempo techno production. Tonally it lands dark and steady. Rhythmically it is built for the dancefloor. The mix is almost entirely instrumental. The master keeps real dynamic headroom. A 2011 production that still circulates in sets. Groovier than 93% of Truncate's catalogue. For programming, treat it as a mid-set roller.
- Energy:
- calmer than 88% of Truncate's catalogue
- Tempo:
- slower than 87% of Truncate's catalogue
- Brightness:
- darker than 85% of Truncate's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
FAQ
What key is 21 in?
21 by Truncate is in D♭ major, or 3B on the Camelot wheel.
What BPM is 21?
21 runs at 126 BPM, a club-tempo track.
What mixes well with 21?
From 3B it blends harmonically with 4B, 3A, 2B. Moving to 4B lifts the energy a step.
Is 21 good for peak time?
With energy 51 out of 100 at 126 BPM, it works best as a mid-set roller.
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 126 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%: 118-134 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 mid-set roller.
Similar tempo
Within ±3 BPM of 126 — beatmatch without a big tempo pull.
More techno
More from Truncate
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 126 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
