Upright Bass: Bb Dorian Over the Changes

Bb Dorian runs 7 notes to the octave, laid out here on EADG with every Bb flagged. Mid-chorus the pattern is not what you need; where the root is when the chord changes underneath you is.

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.

The upright takes a chorus less often than anyone, and that is exactly why these matter: the notes between one chord root and the next come out of a scale, and a walk that lands on the wrong one is the loudest wrong note in the room.

Play it slowly against the audio until it stops being a shape, then put it over two bars of a form and let the chord tones decide which of the notes you actually keep.