B Dorian Bebop, Upright Bass Side

8 notes to the octave, mapped below onto this reader's EADG fingerboard, with every B called out. Those markers are the useful part mid-bar: a chart moves under you, and the thing you need is where the root went — not where the pattern started.

Dorian with a chromatic passing tone slipped between the b3 and the 4 — eight notes, so chord tones keep landing on the strong beats in a run of eighth notes. Cool, flowing, and swinging.

Heard in: Bebop and straight-ahead jazz lines over minor seventh chords — Charlie Parker, Dizzy Gillespie, and the Barry Harris approach.

The walk from one number to the next has further to travel on this instrument, so the notes it passes through are chosen for the distance as much as for the harmony.

Play it slowly against the audio until the position stops being a position, then take it to a chart counted in B and let the numbers pick their own notes out of it.