Using Your Thumb
One of the main reasons to play slide with your fingers is so you
can provide backup for yourself. After you have figured out an interesting
progresson, adding your thumb to the riff will greatly enhance your
song, as it adds the bass notes that you will need if playing solo.In
the lesson below, we are going to show you how to thump out a steady
quarter-note groove on the low string while continuing to produce
cool riffs on
the top strng.
The
first
step
is
finding
the bass notes with the thumb. Once you do that, next comes using the
thumb to keep a steady bass note going. Once you can do that, it’s
a matter of learning to play licks without losing track
of the
bass part your thumb is playing. Don't worry because it will take time
for this, but not only will it help you musically, it can also help
you if you are a vocalist. Why? Since you are having to think about
two or more notes at a given time, using your thumb for the bass notes
trains you to distance yourself from the guitar and allow more of a
patternesque logic.
In the example below, try playing the notes that you are supposed to
play with your thumb as backing notes. What we mean by this is that
you will need to focus mainly on ALL the other notes except your
thumb notes and then just add them in to provide a bit of rhythm.
Some call this "call and response." This is when you seperate time
and space with emphasized notes that perform a function. In the first
measure below, all notes up until you play on the "low E" string
are your "calls," and the notes on the "low E" string will be your
"response."

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