Although this may not be what aspiring performers want to hear, one of the answers lies in, 'The Arpeggio'.
The Arpeggio is a basic technique which is encountered in nearly every piece and is an excellent and essential technical exercise.
Even after more than 40 + years as a performer Robin will still practise arpeggios on a regular basis.
Chapter 1 of Robin Hill's, 'The Guitar Gymnasium' focuses solely on the arpeggio and contains 18 pages of explanations, advice, quotes and original exercises.
Today I have decided to show you the first two pages as an example of the approach Robin uses.
Click on the image to enlarge if required.
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As Robin says later in the chapter, 'These exercises should be taken at a slow (60bpm) tempo initially gradually increasing the tempo. Practise with a metronome is recommended (but not all the time). The exercises should be played with fluency and technical command, accuracy is paramount.'
Good luck and keep checking in as next we will look at the tricky area of, 'The Scale'....