An Expert System Devoted to Automated Music Identification and Recognition - Intelligent Music Information Systems: Tools and Methodologies - page 97

Table 8. Chosen identifiers for examples 2, 3 and 4
Musical-related Characteristics Of The Epoch Example 2 Example 3 Example 4

X1- Religious
X2- Solemn
X3- Sumptuous
X4- Finesse
X5- Seemingly devoted to a selected audience, like a Royal Court

No (F1N)
Yes (F2)
Yes (F3)
Yes (F4)
Yes (F5)

No (F1N)
No (F2N)
No (F3N)
No (F4N)
Yes (F5)

Yes (F1)
Yes (F2)
Yes (F3)
Yes (F4)
Yes (F5)

Instrumentation
X6- Wood wind instruments plus trumpet
X7- Chord
X8- Remainder wind-chord

No (F6N)
Yes (F7)
No (F8N)

Yes (F6)
Yes (F7)
Yes (F8)

No (F6N)
No (F7N)
No (F8N)

Characteristics Of The Musical Style
X9- Proportion.
X10- Harmonic complexity
X11- Contrasts
X12- Clearness
X13- Equilibrium

Yes (F9)
Yes (F10)
No (F11N)
Yes (F12)
No (F13N)

Yes (F9)
No (F10N)
Yes (F11)
Yes (F12)
Yes (F13)

Yes (F9)
Yes (F10)
No (F11N)
Yes (F12)
Yes (F13)

Components Of The Structure Of The Music Work
X14- Motif
X15- Phrase.
X16- Alberti bass
X17- Continuous bass
X18- Melody

No (F14N)
Yes (F15)
No (F16N)
No (F17N)
No (F18N)

Yes (F14)
Yes (F15)
No (F16N)
No (F17N)
Yes (F18)

No (F14N)
No (F15N)
No (F16N)
Yes (F17)
Yes (F18)

Compositional Analysis
X19- Regular structures
X20- Major tones
X21- Ornamentation
X22- Polyphonic development or counter point
X23- Melody accompaniment

No (F19N)
Yes (F20)
Yes (F21)
Yes (F22)
Yes (F23)

Yes (F19)
Yes (F20)
No(F21N)
No(F22N)
Yes (F23)

Yes (F19)
Yes (F20)
Yes (F21)
No (F22N)
No (F23N)

(potential fact denoted as F16N, that is not-
F16), although continuous bass (potential
fact denoted as F16) is recognized.

The user(s) should choose in the GUI the 23
identifiers (that is, potential facts) as shown in
Figure 3. The result of pressing these keys is the
introduction of the following ideal K1 (generated
by the polynomials that translate the negations of
the 23 mentioned potential facts) into CoCoa.

• Regarding compositional analysis, neither

regular structures (potential fact denoted as
F19N, that is not-F19) nor over-stress of major
tones (potential fact denoted as F20N, that
is not-F20) appear. The music is ornamental
(potential fact denoted as F21). Polyphony is
part of it (potential fact denoted as F22) but
there is not accompanying melody (potential
fact denoted as F23N, that is not-F23).

K1:=Ideal(NEG(F1),NEG(F2),NEG(F3),NEG(F4N),NEG(
F5N),NEG(F6),NEG(F7),NEG(F8N),NEG(F9N),NEG
(F10), NEG(F11),NEG(F12N),NEG(F13N),NEG(F
14),NEG(F15N),NEG(F16N),NEG(F17),NEG(F18N)
,NEG(F19N),NEG(F20N),NEG(F21),NEG(F22),NE
G(F23N));