Definition: The term "intertone" in music refers to a specific range of pitches within a musical scale, typically between 12 and 20 cents (or 5 and 9 Hz). This range is often used by musicians to create a sense of harmony or balance, as well as to help them identify the pitch of notes that are not already known. Intertones can be found in various scales, but they are most commonly associated with the C major scale in Western music.