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Bass Guitar · Scales & Modes

Bass Guitar Scales & Modes — Complete Modal Guide

Bass guitar modal playing is the foundation of every great groove. While guitarists solo over changes, the bassist creates the changes — and the mode you choose for a bass line defines the emotional character of the entire song.

The Most Important Modes for Bass

Dorian — The Bass Player's Home Mode

1 2 ♭3 4 5 6 ♭7

James Jamerson, Jaco Pastorius, Anthony Jackson — the greatest bass lines in history are Dorian. The raised 6th gives bass lines a soulful, warm quality that works in every genre from Motown to jazz to funk.

Mixolydian — Rock and Blues Bass

1 2 3 4 5 6 ♭7

Over dominant 7th chords — the chords that define blues, rock, and funk. John Entwistle, Geezer Butler, Flea. The ♭7 creates the unresolved energy that drives bass lines forward.

Aeolian — Minor Key Foundation

1 2 ♭3 4 5 ♭6 ♭7

Natural minor bass lines — the backbone of rock ballads, metal, and dark R&B. The ♭6 landing point creates a falling, melancholic quality in bass lines that works perfectly under minor chord progressions.

Phrygian — Metal and Aggressive Bass

1 ♭2 ♭3 4 5 ♭6 ♭7

The ♭2 in Phrygian creates crushing tension when played on bass. Geezer Butler's Black Sabbath bass lines often touch the ♭2 on the low B or E — it's the note that makes heavy music heavy.

The 5-String Bass and the Octave Frequency Map

The Dead Sea Scales Octave Frequency Map shows the complete range of 5-string bass (B0–G4) color-coded by octave alongside guitar and piano. It's the most comprehensive bass note reference chart available — free on the interactive tool.

Ionian ModeDorian Mode Phrygian ModeLydian Mode Mixolydian ModeAeolian / Minor Blues ScalesJazz Scales Metal ScalesMusic Theory

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DEEP DIVES

Why 42 Modes? Dead Sea Chords 2,048 Combinations Pentatonic Origins Where Notes Came From Guido d'Arezzo George Russell All Resources