Root motion and harmonic rhythm (beats per chord), scale and chromatic approach
Lesson time: (7min 49sec)
Bruce Gertz breaks down the second bass progression: walking down the scale over cycle-of-fifths changes like C7 to F7, four beats per chord.
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This lesson is part of the course Contemporary Bass Guitar Grooves
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Lesson transcript:
Music Lesson: Scale Down and Scale Up Techniques
So now we did the roots and fifths and octaves.
Scale Down
Now we're going to talk about number two: the scale down.
- When we have cycle five motion, in other words, we're going from C to F down a fifth, like this (or any position), in four beats, we can walk right down the scale.
"See where that works? 1, 2, 3, 4."
So in the C7 to F7, it comes right down.
Close-Up of the Neck
Again, that scale down thing takes four beats.
- When you're looking at Example One on the sheet, from point A to point B, you have:
- C
- F
- D minor 7
- G7
So I can come down the scale to the F.
"I'm sorry, it's C major 7."
Now I have to go back to D, then down to G.
- If I was going to repeat the idea, I'd come down the scale from the G. Say here's low G.
"I can't keep going down because I run out of bass."
So I go with seventh up and come down the scale that way, like that.
Scale Down from the Octave
Now, moving on to Example 1:
- C major 7
- F major 7
- D minor 7
- G7
I'll start walking down the scale now to repeat.
"What I did was I just did scale down on every chord change."
However, that's not the way you really want to play.
-
Combine that with the fifths and roots and octaves, and then you can get a real interesting sound just with those two things.
- Here, I'll go down the scale now, octave, I mean fifth and octave down the scale, fifth root.
"See all the different ways I can combine just root, fifth, and octave and down the scale."
Example Two
Now, in Example Two, where you have two beats per chord change, you can't walk down the scale for four beats, obviously, because you only have two beats.
- In a situation like that, the best thing is to use that root and fifth:
- C
- F
- root
- fifth
- D
- E
- A
- D
- G.
Again, fifth root, fifth root.
"If I wanted to do that faster, it'd be like, see that? And that's just roots and fifths and octaves."
Example Three
In Example 3, I can come down the scale:
- G minor 7 for 2 bars,
- C7 for 1 bar,
- D7 for 1 bar.
"Best thing is probably, since you have two bars of A, G minor, is to walk to the fifth, then C, D to the fifth, C to G."
Scale Up
Now let's talk about the scale up.
- When you walk up the scale from C to F in four beats, you land on F on beat four.
"And you don't want that; you want to land on F on beat one."
So in order to do that, you need to add a note.
-
You could play two Cs so that this comes on 1, 1, 2, 3, 4, 1.
-
Or you can add a chromatic in here like that.
-
You can also add another chromatic this way.
"See, that way I get four beats on that."
Also, I can walk up the scale to the third and then skip above the F and then go to that.
- That's 1, 2, 3, 5 of the scale.
Scale Up Ideas
These scale up ideas would be:
- Repeat the note
- Chromatic
- The other chromatic
Another thing is to have the triad:
- A triad is 1, 3, 5.
Then you can either go:
- Back to the octave or to the octave above,
- Back to the root below,
- Back to the third.
That's the first example, a combination of using root, fifth, and octave, scale down, scale up, and now the next thing to talk about is approach notes.
About the instructor

Bruce Gertz is an award-winning bassist (acoustic and electric), composer, educator, and author. He is a professor of bass at Berklee College of Music, where he has taught since 1976. Bruce is the recipient of the National Endowment for the Arts Jazz Performance Award Grant, the Massachusetts Cultural Council Musical Composition Award, and numerous outstanding bassist awards from the Boston Music Awards, A.S.C.A.P. Plus Popular Awards, and multiple recognition awards from the International Association of Jazz Educators and the Jazz Education Network. Bruce also serves on the board of directors of the International Society of Bassists. He has performed and recorded with such artists as Gary Burton, Jerry Bergonzi, John Abercrombie, Joey Calderazzo, Kenny Werner, Mick Goodrick, Kurt Rosenwinkel, Billy Hart, George Garzone, Mike Stern, Larry Coryell, Joe Lovano, Cab Calloway, and Count Basie, among many others. In Contemporary Bass Guitar Grooves, Bruce puts all of that experience to work for you. You'll learn to build solid, swinging bass lines and lock into authentic grooves across funk, jazz, and fusion, so you can hold down the bottom end and walk into any band situation with confidence. His extensive discography and additional information can be found at www.brucegertz.com. read more




