Jass by Calibre cover art
Key
2B · F♯ major
BPM
117
Open Key
7d
Energy
77/100
Pop
13/100
Length
5:32
Released
2018
Album
Shelflife 5
Genre
Drum N Bass
Loudness
-5.7 dB
ISRC
GBZSD1800012

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

Jass: mid-tempo drum n bass, F♯ major (2B), 117 BPM. The feel is dark and driving. The mix is almost entirely instrumental. A 2018 production that still circulates in sets. Less groove-driven than 91% of Calibre's catalogue. In a set it works best as a mid-set roller.

Tempo:
slower than 82% of Calibre's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy77
Mood24Dark
Groove46
Acoustic0
Instrumental79
Live4
Speech8

Frequency spectrum

amplitude · bass → treble

FAQ

What key is Jass in?

Jass by Calibre is in F♯ major, or 2B on the Camelot wheel.

What BPM is Jass?

Jass runs at 117 BPM, a mid-tempo track.

What mixes well with Jass?

From 2B it blends harmonically with 3B, 2A, 1B. Moving to 3B lifts the energy a step.

Is Jass good for peak time?

With energy 77 out of 100 at 117 BPM, it works best as a mid-set roller.

Mixes harmonically

2B1B · 3B · 2A

From 2B, 3B (D♭ major) lifts the energy a step; 2A (E♭ minor) settles into the relative minor; 1B (B major) cools the energy down a step.

#TrackKey·BPM

Every move from 2B

3BSimple Mix Upper
1BSimple Mix Downer
2ATonal Shift·
3ADiagonal Mix Upper
1ADiagonal Mix Downer
5ACompatible Tone·
4BHigh Energy Boost▲▲▲
12BHigh Energy Drain▼▼▼
5BParallel Key Upper▲▲
11BParallel Key Downer▼▼
9BTritone Jump▲▲
6BRelated Keyrisky

How to mix it

In 2B at 117 BPM: 3B (D♭ major) — move to 3B to push the floor harder; 2A (E♭ minor) — switch to 2A for a mood change without losing the groove; 1B (B major) — drop to 1B to bring the room down gently.

Pitch range at ±6%: 110-124 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 9B rather than 2B; below -5% it reads as 7B. With key lock on, it stays 2B across the whole range.

Programming: a mid-set roller.

Similar tempo

Within ±3 BPM of 117 — beatmatch without a big tempo pull.

#TrackKey·BPM

More drum n bass

#TrackKey·BPM

More from Calibre

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 117 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.

#TrackKey·BPM

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