A Enigmatic Bass Scale
Bass scale — fretboard diagram
A Enigmatic Scale — Notes and Intervals
The A Enigmatic scale was invented as a musical puzzle and famously used by Giuseppe Verdi. On Bass, 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
How to Play A Enigmatic on Bass
On bass, locate A on the E string at fret 5. Use a one-finger-per-fret approach starting from the root and span two to three strings. Keep your fretting hand relaxed and practice shifting between positions cleanly.
The A Enigmatic scale contains both sharps and flats (2 sharps, 2 flats), which is common in altered and exotic scales. This scale does not follow a traditional major or minor key signature, so reading from sheet music may require accidentals.
Practice Routine
Set a metronome to 80 BPM and play the A Enigmatic scale in groups of four notes, shifting the starting note each repetition. This builds muscle memory across the entire scale range. After a week, try improvising short 4-bar phrases using only these notes.
Exotic scales like the Enigmatic often work best as a melodic layer over a single root drone on A. Let the unique intervals speak for themselves without frequent chord changes.
Bass Tips
On bass, use the A Enigmatic scale to build walking bass lines by targeting chord tones on strong beats and using scale tones as approach notes. This is the foundation of functional bass playing.
The A Enigmatic scale contains 7 notes (A, Bb, C#, Eb, F, G, G#). Use the interactive fretboard above to explore this scale on Bass with different tunings and fret ranges.
CAGED Positions & Patterns for A Enigmatic
The A Enigmatic scale can be played in 5 CAGED positions across the fretboard, each based on an open chord shape (C, A, G, E, D). As a 7-note scale, it also lends itself to 3-notes-per-string (3NPS) patterns that facilitate legato playing and diagonal shifting. Use the pattern selector above to isolate each position.