👉 Odeons are a type of musical notation system that originated in Western music, specifically in the Baroque era. They were developed by Italian composer Antonio Vivaldi and his students, and they are characterized by their use of multiple lines with repeated notes. In Odeons, each line is divided into two parts: the first part contains one note followed by another note, while the second part contains two notes separated by a space or a semicolon. This system was used to create complex musical