The set’s graduation walk: Em7, A7, Dmaj7. It begins on the lowest note a standard-tuned bass owns — the open E — and finishes at the seventh fret, covering more neck than the other three walks combined. Same recipe; new geography.
Reading the line
Bar one spells Em7 from the open E — E, G, B — and then returns to G, this time as a whole-step approach into A. Bar two answers with A, C#, E and a C# approach tucked a half step under D. Watch what happened across those two bars: the SAME contour, root–third–fifth–third, produced a scale approach in one bar and a chromatic-feeling leading tone in the other, purely because of where the next root sat. That is the recipe thinking for you. The Dmaj7 bars then climb D, F#, A with C# circling back, and the line tops out on D at the seventh fret of the G string — the octave of where the bar began.
Practicing it
Use this walk to break the open-position habit: play it as written, then transpose the last two bars an octave down and hear how register changes the story a line tells. The shift into the fifth-position landing is the physical skill — practice the move slowly with the D major scale map in front of you so the destination frets are already friends. Then close the loop: go back to the walk in C and notice you now read it in one pass.