Finessing the V Chord in Slide Melodies
If youâ€™re slick, you donâ€™t actually have to change positions for the V chord in the 12th-fret position, though itâ€™s still important to know how to change positions for the V. All Iâ€™m saying is that there are ways to use the 12th-fret position to play ideas that will work well over the V chord.
The best way to understand this is just to hear and play an example. Take a look at Example 14â€”note the quick turnaround from I to V and back again in measures 3 and 4, which calls for some rapid thumb work.
Why does this work? Well, when you stick to the notes at the 12th fret like this, youâ€™re basically playing notes from a G-major scale. That still sounds all right over the V chord because the V chord and the I chord are both in the key of G, and both chords are built out of notes from the G-major scale. Also, when youâ€™re passing fairly quickly through the V chord like this, the sheer melodic strength of repeating a figure in the G-major scale over both chords will carry you through. Besides, just listen to it. It sounds good. Sometimes thatâ€™s enough of a reason.
Excerpted from Acoustic Guitar Slide Basics
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