M. E. Lines

M. E. Lines, or Maxwell Edition Lines, are a system used in music theory to visualize the relationships between different keys and scales. They help musicians understand how keys relate to each other by arranging notes and chords on a diagram, making it easier to see transitions and modulations. Essentially, M. E. Lines serve as a tool for analyzing and visualizing the structure of musical harmony, aiding composers, performers, and students in grasping complex key relationships in a clear, visual format.