Conifold transitions

The piece belong to the research on what I called "Polysystemism", the simultaneous employment of different tuning systems.

In "Conifold transitions" we found: 12-ET, Meantone, Pythagorean, Just intonation, Werckmeister I, II and IV.

By using different tuning systems the acoustic phenomena are increased enormously if compared with the use of single temperament, since the amount of frequencies of a single tuning system is much smaller than that of the seven systems mentioned above.

"Conifold transitions" are a particular type of geometric transformation described by the physicist Brian Greene in the elaboration of some particular aspects of string theory. In these transformations the string stretches in the form of a cone, with a vertex, and then turns into a new circular shape.

In the same way in the musical piece the harmonic texture condenses into spurious unisons (the vertexes of the cone) and then turns into a new harmonic configuration.

The use of scordaturas in the strings, and the consequent use of only open strings and natural harmonics (whose frequencies cannot be altered), guarantees the correctness of the deviations in tuning of the frequencies themselves.

The piece also focuses on the physical dimension of sound (complex beats, differential tones, roughness, timbre transformations due to orchestration, sonic permeability etc.), without neglecting a poetic dimension emerging from the transformation of the material over time.