This implies a deep knowledge of the guitar
fingerboard. But you'd go wrong if you thought that this is the practical
side of the matter.
Every action, conscious or unconscious, is
always determined by your mind. So to put your ideas on the instrument,
you need to have a mental representation of what are you going to do. You
have to imagine your fingers on the fingerboard, the notes on the score,
the sound coming from the guitar, and all the physical sensations involved
in the performing process.
The more accurate your mental representation
is, the more accurate will be the translation of your musical ideas on
the instrument.
Analyze how guitar masters as Sor, Giuliani
or Tarrega have composed for the guitar. Look at the details, at the texture
of their works. Study the magisterial transcriptions of Andres Segovia.
A lot of persons, even musicians, think that
to improvise you just need some tricks, some schemes. They think it is
a mere matter of fingers.
Improvising seriously on the guitar doesn't
mean just to play a pleasant harmony, a never ending arpeggio, or to move
the same position up and down on the guitar fingerboard, in Villa Lobos
study n°1 style. It simply means to play in a complete form your
musical ideas with your instrument, instantaneously.
Nothing is more true: improvisation is a thing
you can't improvise.
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