👉 Seisures, also known as six-ways, are a musical notation system used in classical music. They were developed by the composer and pianist Alfred Cortot in 1896 to represent a set of six musical ideas or themes. Each note represents one of these themes, with each key representing the first movement of the theme. The notes are written in a specific order, where the first note is always played on the first key (A), the second on B, and so