A Dorian — Bass (4-String)

The A Dorian scale runs 7 notes per octave in the modes family. Below it sits on the Bass (4-String)'s EADG strings with every root marked, because a bassist reads a scale map as a set of targets around the root, not a row of dots.

Minor with a raised 6th (natural 6) — soulful, smooth, and less dark than natural minor. The quintessential jazz-minor and blues mode.

Heard in: "So What" (Miles Davis), "Oye Como Va" (Santana), "Eleanor Rigby" (Beatles) — rock, blues, funk, jazz.

In fourths tuning every pattern is movable: learn the shape once, one finger per fret, and it works from any root on the EADG neck.

Walk it slowly against the audio, land each root on a downbeat, then take it to the progressions in A and let the scale turn into lines.