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A. Tikhonravova

Harmonic possibilities of the Russian seven-string guitar

The article adduces the results of the study devoted to harmonic possibilities of Russian seven-string guitar in comparison with conventional six-string guitar. The author proposes to apply a widely used natural history the term «polymorphic» into the musicological vocabulary to clarify the definition of the typology signs of closely modifications and varieties of musical instruments belonging to the known classification families. It is proved that the Russian seven-string guitar with tertian tuning greatly exceeds the classical guitar in the number of options and ease of performance of seventh chords.

Key words

guitar, seven-string guitar, tertian tuning, seventh chords, olymorphism, polymorphic musical instruments.