Let Me Know by Serum cover art

Let Me Know

Serum

Key
10A · B minor
BPM
177
Half-time
89
Open Key
3m
Energy
91/100
Pop
4/100
Length
5:54
Released
2017
Genre
Drum N Bass
Loudness
-1.8 dB
ISRC
GB8KE1758121

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

A drum n bass cut, Let Me Know sits in B minor (10A) at 177 BPM. The feel is punchy, neutral in mood. The mix is almost entirely instrumental. The master is loud and heavily compressed. A 2017 production that still circulates in sets. Faster than 88% of Serum's catalogue. In a set it works best as an opener or closing-set piece.

Energy:
calmer than 83% of Serum's catalogue

Sonic profile

EnergyGrooveMoodOrganicInstr.LiveTempo
Energy91
Mood57Balanced
Groove69
Acoustic0
Instrumental92
Live7
Speech10

Frequency spectrum

amplitude · bass → treble

FAQ

What key is Let Me Know in?

Let Me Know by Serum is in B minor, or 10A on the Camelot wheel.

What BPM is Let Me Know?

Let Me Know runs at 177 BPM.

What mixes well with Let Me Know?

From 10A it blends harmonically with 11A, 10B, 9A. Moving to 11A lifts the energy a step.

Is Let Me Know good for peak time?

With energy 91 out of 100 at 177 BPM, it works best as an opener or closing-set piece.

Mixes harmonically

10A9A · 11A · 10B

From 10A, 11A (F♯ minor) lifts the energy a step; 10B (D major) brightens to the relative major; 9A (E minor) cools the energy down a step.

#TrackKey·BPM

Every move from 10A

11ASimple Mix Upper
9ASimple Mix Downer
10BTonal Shift·
11BDiagonal Mix Upper
9BDiagonal Mix Downer
7BCompatible Tone·
12AHigh Energy Boost▲▲▲
8AHigh Energy Drain▼▼▼
1AParallel Key Upper▲▲
7AParallel Key Downer▼▼
5ATritone Jump▲▲
2ARelated Keyrisky

How to mix it

In 10A at 177 BPM: 11A (F♯ minor) — move to 11A to push the floor harder; 10B (D major) — switch to 10B for a mood change without losing the groove; 9A (E minor) — drop to 9A to bring the room down gently.

Pitch range at ±6%: 166-188 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 5A rather than 10A; below -5% it reads as 3A. With key lock on, it stays 10A across the whole range.

Programming: an opener or closing-set piece.

Similar tempo

Within ±3 BPM of 177 — beatmatch without a big tempo pull.

#TrackKey·BPM

More drum n bass

#TrackKey·BPM

More from Serum

Full profile
#TrackKey·BPM

Other recommendations

Beyond strict key and genre matches: tracks that still sit in beatmatch range of 177 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.

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