Boethius, De musica, f.43v, (211 x 144 mm), 12th century, Alexander Turnbull Library, MSR-05. Boethius, De musica, 12th century -On the mathematical basis of music. Geometric Patterns Geometric Form Math Patterns Pseudo Science Science Art Leaf Outline Psy Art Stream Of Consciousness Math Art. Geometrical Psychology: Mathematical Models of Consciousness by the 19th-Century Psychologist.