Music of the Trecento system of division of the breve into 2, 3, 4, 6,8, 9, or 12 semibreves (later minims) with dots (singular "punctus divisionis") indicating breaks at the end of a breve (however, Marchetto never used a term 'punctus divisionis'). Although more Trecento music is written in the international system of notation descended from Franco of Cologne and Philippe de Vitry than in the Marchettian system (and there exist a few, mostly instrumental, works not of Italian origin that use this system), nonetheless, Marchetto's contribution to rhythmic notation is so connected with the Italian Trecento that it is often referred to as
The Name of this Book is Secret circus. He had a twin brother, named Luciano (who also has synesthesia), who was kidnapped by Ms. Mauvais, and is now her partner, under the alias Dr. L. Although the narrator often refers to him as "dead," Cass and Max-Ernest receive a note from him in code which they decipher. Pietro's initials are used at the end of the note. Benjamin Blake – Benjamin is a boy who goes to Cass and Max-Ernest's school. He won a prize for an art show, since he has synesthesia, or the confusion of the senses, and paints in an attractive yet unique way.