Watch the Mixing It Up online guitar lesson by John Goldsby from Upright Bass Handbook

Here we'll play two choruses of the blues etude "Mixing It Up." Make sure you have the fingerings down before you start, and that you know where to shift in and out of the half and first position. Here's what we find in this bassline: Bar 1 is a Bb triad, leading to an Eb Mixolydian scale in bar 2. Bar 3 starts with notes from a Bb6 chord, then goes to the notes F, Ab, Bb, and D in bar 4. Bar 5 uses some chromatic leading tones into the Eb in bar 6. Bar 7 uses notes from the Bb7 arpeggio. Bar 8 moves down scale wise from G into the C in bar 9. The line keeps moving downward diatonically to the F in bar 10. There's a double chromatic approach on beats 3 and 4 of bar 10 into the Bb in bar 11. The last two bars use a classic turnaround to get back to the top of the form.