C Natural is a musical note that is part of the C major scale. It is the natural version of the note C, meaning it is not altered by sharps or flats. In Western music, it is represented by the white key on a piano located immediately to the left of the C# key. In terms of pitch, C Natural has a frequency of approximately 261.63 Hz. It serves as a fundamental note in various musical compositions and is often used in music theory to teach basic concepts of scales and harmony.