Detect Key of Song with Camelot Notation Online Free

Camelot notation is a system that assigns each of the 24 musical keys a number (1–12) and a letter (A for minor, B for major). It was developed to make harmonic mixing intuitive for DJs — instead of memorizing music theory, you just match numbers and letters.

Examples:

• A Minor = 8A — one of the most common keys in electronic music
• C Major = 8B — the relative major of A Minor
• F# Minor = 11A — common in techno and trance

Compatible keys for mixing are adjacent on the Camelot wheel: same number (different letter), or adjacent numbers (same letter).

Once you know the Camelot key of your tracks, mixing harmonically is simple:

• Perfect match — same key (e.g., 8A → 8A). Seamless blend, no harmonic change.
• Relative major/minor — same number, switch letter (e.g., 8A → 8B). Smooth energy shift.
• Energy boost — move one number up (e.g., 8A → 9A). Increases tension and energy.
• Energy drop — move one number down (e.g., 8A → 7A). Creates a calmer feel.

• DJ harmonic mixing — find compatible Camelot keys for seamless, musical transitions
• Music production — detect the key of a sample before using it in your project
• Remixing — know the original key before transposing elements
• Songwriting — analyze reference tracks to understand their harmonic structure