A "scale degree" refers to the position of a note within a musical scale. Each note in the scale is assigned a number, starting from the tonic, which is the first note. For example, in the C major scale, the notes are C (1), D (2), E (3), F (4), G (5), A (6), and B (7). These numbers help musicians understand the relationships between notes and how they function within a piece of music. Scale degrees are essential for understanding harmony and melody. They indicate how notes relate to each other, such as which notes create tension or resolution. For instance, the fifth scale degree, known as the dominant, often leads back to the tonic, creating a sense of closure. This system of numbering helps musicians communicate and analyze music effectively.