We do not mean, however, the described phenomena are of physical nature only. We do not discuss the substance of the phenomena, though. We have concentrated our attention to harmony. The position of harmony is, in a sense, special. We have created a theory independent of musical system.
Harmonic system is a relation on a set of tones.
Let the energy zone be a carrier of the energy pertaining to the given frequency. The cumulated energy remains in the zones until external forces exhaust them. The interaction depends especially on the size of the musical interval . Let the harmonic binding be a carrier of the energy pertaining to the given musical interval. Each tone of F-system stands for a class of equivalent tones of the regular system.