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Key & Harmony

What Key Is 11B?

11B is A major on the Camelot wheel (4d in Open Key notation). It mixes harmonically with 3 other keys: one step down for an energy drop, one step up for an energy boost, and the opposite letter on the same number for a mood swap.

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1A1B2A2B3A3B4A4B5A5B6A6B7A7B8A8B9A9B10A10B11A11B12A12BCamelot
This Key
11B
A major
Open Key 4d
Energy Drop
10B
D major
Open Key 3d
Energy Boost
12B
E major
Open Key 5d
Mood Swap
11A
F♯ minor
Open Key 4m
Camelot code
11B
Musical key
A major
Open key
4d
Track sample
View 11 reference tracks

Camelot compatibility is a planning aid. Verify critical transitions against the exact track edit in your own library.

11B Is A major

On the Camelot wheel, 11B is the code for A major. In Open Key notation it's 4d. The “B” letter marks major mode — brighter, more uplifting in feel — and the number 11 sets its position on the wheel.

The relative minor is 11A (F♯ minor) — it shares all the same notes as A major but flips the mode, which is why DJs use it for “mood swap” transitions.

Track Evidence for 11B

The Camelot relationship is fixed music theory, but track examples still depend on the analysis source and exact edit. These stats describe the A major tracks shown here.

Tracks shown
11
BPM spread
112-149 BPM
Median BPM
124 BPM
Mode
Major / brighter
Common genres
Tech House
Evidence level
11 tracks, reviewed by key

Mixing Out of 11B

Three keys mix smoothly with 11B, each producing a different effect on a set's energy:

Energy drop10BD majorSubtle pull-back for outros or warmups.Energy boost12BE majorForward lift, usually the most-used adjacent move.Mood swap11AF♯ minorSame notes, flipped mode, fresh emotional color.

Why These Keys Work Together

The three compatibility moves on the Camelot wheel aren't arbitrary — they reflect real music theory. Adjacent keys (number ±1, same letter) share six of seven notes, which is why melodies ride over the boundary without clashing. The opposite-letter same-number move is the relative major/minor — those two keys share all seven notes, only the tonal center shifts. That's why mood-swap transitions feel jarring in mood but never harmonically wrong: the underlying scale is identical.

How to Use 11B in a Mix

Build sets that move through the wheel rather than jumping randomly: see the interactive Camelot wheel for a visual map.

When in doubt about a track's key, run it through the key converter to translate between Camelot, Open Key, and standard musical notation.

Want to see the full grid of compatible keys at a glance? The harmonic mixing chart lays it all out, and the Camelot wheel cheat sheet is printable for offline use.

Read the deeper theory in our harmonic mixing guide.

Ben Modigell

Hey, it's Ben Modigell 👋

I've been DJing and producing music as "so I so," focusing on downtempo, minimal, dub house, tech house, and techno. My background in digital marketing, web development, and UX design over the past 6 years helps me create DJ tutorials that are clear, practical, and easy to follow.

DJingMusic ProductionTech HouseMinimal HouseDigital MarketingWeb DevelopmentUX Design

Author and Methodology

Maintained by Ben Modigell

Ben is the founder of Vibes and builds DJ library, preparation, BPM, and harmonic-mixing tools for working DJs.

Last updated:

Data used: 290-track reference snapshot; this page filters the 11 entries tagged 11B (A major).

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Evidence: 11 reference tracks in the current snapshot are tagged 11B. BPM/key values come from ReccoBeats audio features and track metadata is resolved through Spotify.

Source: Audio features sourced from ReccoBeats (https://reccobeats.com); track metadata via Spotify Search API. Spotify deprecated audio-features for new apps in Nov 2024. Manual label reference tracks use Beatport BPM/key metadata where available.

How this page is made: Camelot key pages are generated from deterministic Camelot/Open Key mappings, harmonic-mixing rules, and a ReccoBeats/Spotify reference track snapshot. AI is not used to calculate key compatibility.

Camelot compatibility is deterministic music theory; track keys still depend on the analysis engine and the specific edit or remaster.

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Frequently Asked Questions

11B is A major. In Open Key notation it's written as 4d. It's a major key: typically brighter and more uplifting in feel.
11B translates to 4d in the Open Key (also called Open Key Notation) system. The "d" suffix marks major mode.
The relative minor of 11B (A major) is 11A (F♯ minor). They share the same number on the Camelot wheel and switch between major and minor without changing notes, making them perfect for "mood swap" transitions.
In the reference tracks shown on this site, A major (11B) shows up most often in: Tech House, Trip-Hop, Future Bass. Major keys like this one are common in uplifting trance, future house, and pop-leaning electronic: anything bright and crowd-friendly.
Three keys mix smoothly with 11B: 10B (D major) for an energy drop, 12B (E major) for an energy boost, and 11A (F♯ minor) for a mood swap (relative minor). These are the canonical Camelot harmonic-mixing relationships.