After presenting the general framework of 'mathemusical' dynamics, we focus on one music-theoretical problem concerning a special case of homometry theory applied to music composition, namely Milton Babbitt's Hexachordal Theorem. We briefly discuss some historical aspects of homometric structures and their ramifications in crystallography, spectral analysis and music composition via the construction of rhythmic canons tiling the integer line. We then present the probabilistic generalization of Babbitt's result we recently introduced in a paper entitled "New hexachordal theorems in metric spaces with probability measure" (published in the Rendiconti del Seminario Matematico della Università di Padova) and illustrate the new approach with original constructions and exemples.