2. HARMONIC ASPECTS
This characteristic of Sardinian folk songs concerns coral
singing in which, a part from the melodic outline of sa 'oghe (bogi),
it is possible to perceive the counterpoint together with the other three
parts (mesa 'oghe - falzittu, contra and basciu) which give
origin to the harmony as a simultaneous performance of various sounds.
On hearing these songs it is sufficient for a skilled
listener to recognise some characteristics of Sardinian folk singing:
- cords (tonic and dominant)
- harmonic movement
- modulation
a. Chords
Chords are the simultaneous performance of numerous sounds,
the quantity and the volume of which qualifies the type of chord. In
Sardinian folk singing only the major chord exists, considered
as a triad or as minor quadriade (dominant in seventh),
as shows the example below (Fig. 6) in a SOL major tone.
Fig. 6 - Major chords
In this area of folk songs the minor chord does not
exist (Fig. 7), conclusion that I prefer not
to extend to folk songs of other Sardinian cultures. There are two
reasons for this. The first is of a harmonic nature, because having
to harmonize 'sa 'oghe (the second of the four parts(voices),
the major chord is absolutely necessary. The second reason is of an
esthetic nature, because supporters of folk songs refuse the minor
chord, which they consider inadequate. Examples of this also exist
amongst the scholarly cultures, for instance Piccarda's third which,
changing the third note in it's scale, transforms the concluding
chord of the piece into major or minor.
Fig. 7 - Minor chords
b. Rhythmical movement
By rhythmical movement of a tone, we intend
that connection amongst chords that places them into a sequence throughout
the whole piece, since all of the song tends to lean on it's tone.
Sardinian music has a simple rhythmical movement: I°-V° grade,
i.e. key notes - dominant (nearly always as quadriade of the
seventh). Almost all of the coral pieces, the most antique, follow this
rhythmical movement. Different modulations is found in Oe cun rara
armonia from Bulzi (Fig. 8).
Fig. 8 - Rhythmical movement in Oe cun
rara armonia (performed by: SU CORO 'E CHEREMULE)

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It is rare to find a major 4th grade chord. In this case
the rhythmical movement is of the I°-IV°-V° grade. One example
is Salve Regina from Pattada (Fig.9), another rare instance
is Magnificat from Bulzi.
Fig. 9 - Rhythmical movement of Salve
Regina di Pattada (Performed by: SU CORO 'E CHEREMULE)

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