What is the key signature for C Major?

The key signature for C Major is characterized by having no sharps or flats. This means that the scale is built using only the natural notes: C, D, E, F, G, A, and B. In Western music theory, C Major often serves as a foundational key because it is the simplest and most straightforward major scale to understand and play, particularly on keyboard instruments.

The absence of sharps or flats allows musicians to focus on the relationships between the notes rather than the complexities introduced by accidentals, making it an ideal key for beginners and a reference point in learning other key signatures. Understanding that C Major has no accidentals is fundamental when transitioning to other keys that introduce sharps or flats, as it provides a basis for comparison with these more complex scales.