A Enigmatic Guitar Scale
Guitar scale in Drop D tuning — fretboard diagram
A Enigmatic in Drop D — Notes and Intervals
The A Enigmatic scale was invented as a musical puzzle and famously used by Giuseppe Verdi. On Guitar, the notes are A, Bb, C#, Eb, F, G, G#. It has an unstable and surreal sound because it lacks the traditional fourth and fifth degrees, creating a gliding effect that challenges the listener's expectations. Commonly used in Classical, Experimental, Film Scores. Notable players include Giuseppe Verdi, Igor Stravinsky. Not chord-specific — this is a melodic scale for creating surreal, non-functional passages. Use over sustained pedal tones or atonal contexts.
Notes: A, Bb, C#, Eb, F, G, G#
Intervals: 1P, 2m, 3M, 5d, 6m, 7m, 7M
Degrees: 1 b2 3 4 b5 b6 7
Formula: H-WH-W-W-W-H-H
Number of notes: 7
Tuning: Drop D (D-A-D-G-B-E)
About Drop D Tuning
Drop D tuning lowers the 6th string from E to D, giving you instant access to heavy power chords with a single finger. This deceptively simple change opens up a world of heavier riffs, deeper bass notes, and new chord voicings that are impossible in standard tuning. The low D string creates a powerful foundation for rhythm playing while keeping the rest of the fretboard familiar.
Drop D is one of the most versatile alternate tunings in modern music. From the crunchy riffs of grunge and alternative rock to the thunderous breakdowns of metal, this tuning has shaped the sound of countless iconic songs. It's also surprisingly useful for fingerpicking and acoustic arrangements where you need a deep bass drone.
Notable artists: Foo Fighters, Soundgarden, Rage Against the Machine, Tool, Killswitch Engage
Best for: Power chords, heavy riffs, drop-tuned metal rhythm, and acoustic arrangements with a deep bass drone
Musical Character
Invented as a musical puzzle — lacks the traditional 4th and 5th degrees, creating a gliding, rootless sensation. Verdi used it in his Ave Maria to challenge conventional harmony.