Monotonic bass literally means single tone. In practice, it is the technique of playing a single note over a song’s melody. It gives songs a driving, down home feel as opposed to the bouncy feel of an alternating bass.
Alternating bass is much better to learn first so you can really free up the thumb and begin to understand which bass notes are appropriate to play over a chord.
The end goal of these lessons is to truly free up the thumb and allow you to switch between alternating and monotonic bass to create the foundation YOU want to create while you play country blues music.
To demonstrate the monotonic bass, I will be playing Hey Hey by Big Bill Broonzy. Pay attention to the switching of what note is played depending on what chord I am playing.
Hey Hey is in the key of E. I play the open low E string over the E sections (I chord), the open A string over the A sections (IV chord), and I play F# over the B section (V chord).
The B chord I use is the A chord shape below, moved up two frets.
Here is the demonstration:
Notice how I play single notes in the bass over the melody. I do not switch between the 1st and 3rd strings as I would while using the alternating bass technique.
Learning how to play this type of bass should be relatively straight forward. You will be using the same chord shapes, and in many respects, the thumb movement is simpler.
In the next lesson we will be applying this technique to Robert Johnson’s blues standard Me and the Devil Blues.