As
already said, composition and performance of the same piece of
music are processes that usually take place in separate times.
In improvisation these two processes live in the same time.
To improvise you need to learn to compose very quickly, and to transfer
immediately on the guitar your musical ideas.
Let's start with the latter requirement.
Here are some exercise to develop your "fingerboard instinct"
1A Play
a note, say the C on the 3rd string. Imagine or sing another note,
or better, another pitch.
Try to determine to which note that second pitch corresponds by
considering the interval between the first and the second note.
Play the second note and verify its pitch is the one you have imagined
or sang.
Go on this way.
1B
Play a
note. Then sing or imagine a few notes continuation and try to play
it right.
You can do this with melodies by your invention as well as with famous
ones.
Important suggestion. The guitar tuning is based on perfect
4th intervals, except for the
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2
Play a musical phrase, a simple melody composed by you as well as
a famous one.
Transpose it in another key.
Here is an advantage of the guitar fingerboard respect to a piano like
keyboard:
if you don't use open strings, you can transpose a melodic line simply
using
the same fingerings on a different fret position. Anyway you must not abuse
of
this guitar resource.
Learn to conceive sounds not only as positions on the fingerboard but also
as
notes.
So, if the first note of your melody is a G sharp on the 3rd string, and
you want to transpose it an octave higher, first you must think about the
note
you are looking for, in this case the G one octave higher, considering
all the
possible string-fret combinations in which you can play that note, then
choose the
right combi according to the kind of tone you want to achieve, and finally
play
the entire melody starting from that position.
It is of the greatest importance for you to be the more aware you can of
the notes
you are playing. I want to insist about this point, because guitarists,
even
some concert artists too, have usually the bad habit to play thinking only
about
fingerings, and not about the notes.
I don't intend to say that having a mental vision of the physical movements
involved in the act of playing is wrong. On the contrary I think it is
a very
good thing indeed.
I only point out that limiting your mental vision to the fingerings, ignoring
the notes you are actually playing, if very limiting while performing a
repertoire piece, is absolutely wrong while improvising.
Small suggestion
When you compose your first monadic lines, use a great variety of
rhythms
figures. Insert triplets, fast scales, irregular groups and so on, to make
your musical inventions more interesting.
Play staccato, legato, rubato. Learn to give the music you are improvising
an
instantaneous interpretation. You will find it very satisfying.
And now let's start to put some harmony in our exercises.
3 Take a simple melody, and sing it, trying to deduce its harmony from its notes.
First of all, you have to distinguish the notes that make part of a chord
from the passage notes.
Given all of you know Oh Susanna, let's try to play it in C.
The first question you have to ask yourself is: the first note of
the melody is the first, third, fifth or what else of the first chord.
Sing it and try to understand the harmonic position of that note in
the C chord
Singing it, you should feel that note is the basis of the chord,
you
should experience a sensation of stability in it. So you deduce it is
the basic note of the chord, the first note.
So, if you have decided to play Oh Susanna in C, the start note
is just C.
But, doing this means also to be able to identify the harmonic
functions of a melody, that is its chords.
So, given you want to harmonize a melody in C, you have to identify
the first chord, that doesn't necessary have to be C, and all the
followings ones.
I won't lie: getting this ability requires a lot of practice.
But the fundamental trick to achieve this harmonic ear is to
consider chords not only by their name, but also by their harmonic
degree. A minor and E major are in the key of A minor respectively
1st degree minor and 5th degree major, tonic and dominant, whereas the
1st degree minor and the 5th degree major represent an entire category
of chords.
So, considering harmonic functions, that is harmonic degrees,
give us the incommensurable advantage to have a way of analyzing
the harmony of a piece that doesn't depend on its key.
If you know the harmonic functions of a piece, you can play it in
the key you prefer. This is of enormous importance in improvisation.
Obviously, you have to remember at least to which chords the main
harmonic functions in the usual guitar keys correspond.
(otherwise life would be really too simpler)
Summing
up, we can say to harmonize a melody you have to be able to:
1 Identify the melody harmonic functions (tonic, dominant,
subdominant and other harmonic degrees).
2 Substitute them with the relate chords of the key you have chosen.
3
Identify the position that the melody notes have in the corresponding
chords.
These points must be considered as musical areas in which
focusing your explorations.
It is evident that the point 1 requires a theoretical and
practical knowledge of
harmony.
I think that Shoemberg famous Harmony Manual is one of the best even written
books to really understand how harmony works.
To practice harmony on the guitar, you can take an harmony texts, choose
the
musical examples more suitable on the guitar, and play them.
Unfortunately it's almost impossible to find harmony books written for
the guitar.
Regarding point 3, you must learn to identify from an harmonic
point of view,
the important notes of a melody, that is the notes that constitute the
harmonic
structure of a piece.
Main notes usually are on the beats of a measure. Since also the
so called
"appoggiature" may fall on main beats, pay attention to them.
It is very useful to improvise pieces in which the melodic lines describe
completely or almost completely their harmony, like Bach Cello suites.
A chord arpeggiato is in fact a melodic line that describes an harmonic
structure.
What I said above is useful most of all when you play a known
melody.
Obviously when you improvise, it's you to decide the harmony,
the notes and so on.
But first af all, you have to acquire an harmonic sensibility, that is
a music instinct.
Anyway make also you own composition and improvisation
experiments!
If you find these exercises a little too free, consider that after all,
nothing is more free than improvisation.
Some considerations about the mental vision.
I often speak about having a mental vision of your playing,
Have a good work.
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Daniele Russo 1999