Phono Tactics is a linguistic term.  The Phono tactics deals with the study of the groups of letters are allowable in a syllable or a word and the ones that are impossible by definition.  Each place has a certain background sound whose characteristics, in fact, allow to identify the space, one way or another.  Violations of these “rules of euphony” in the semantic, harmonic and tonal respects are what constitutes the object of the “exercises” in the phono tactics that are achieved through the Teremin and notebook computer.