A# Enigmatic Guitar Scale
Guitar scale in 8-string tuning — fretboard diagram
A# Enigmatic in 8-string — 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#, B, D, E, F#, G#, A. 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#, B, D, E, F#, G#, A
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: 8-string (F#-B-E-A-D-G-B-E)
About 8-string Tuning
The 8-string guitar adds both a low B and a low F# string (F#-B-E-A-D-G-B-E), pushing the instrument's range almost into bass guitar territory. This massive tonal range has become the weapon of choice for djent, progressive metal, and experimental composers who need bone-crushing low-end and soaring highs in a single instrument.
With artists like Tosin Abasi, Meshuggah, and After the Burial leading the charge, the 8-string guitar has redefined what's possible in modern heavy music. The low F# string delivers subsonic heaviness that you can feel in your chest, while the upper strings maintain standard guitar voicings for leads and clean passages. Extended-range compositions often exploit the full span of the instrument, creating a wall of sound that covers bass, rhythm, and lead guitar roles simultaneously.
Notable artists: Meshuggah, Animals as Leaders, After the Burial, Intervals, Monuments
Best for: Djent polyrhythms, extended-range metal riffs, experimental compositions, and one-instrument arrangements spanning bass to lead
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.