The chromatic semitone is usually smaller than the diatonic. An enharmonic note is C, which is a diatonic semitone below D. B, three octaves and a semitone below middle C. For example, the difference between the diatonic semitone and chromatic semitone is called the diesis. Intervals smaller than a semitone are called microtones. Grande's vocals span two octaves, 5 notes, and 1 semitone, from F to E. This means that she has an overall range of approximately four octaves and one semitone. Each tetrachord consists of two whole tones followed by a semitone (i.e. whole, whole, half). Gm7 tunings are achieved by tuning a semitone or a full step down, respectively. It is also called a "chromatic semitone". A major interval is one semitone larger than a minor interval. The smallest of these intervals is a semitone. An equal-tempered semitone is subdivided into 100 cents. Hence, in 12-TET the cent can be also defined as one hundredth of a semitone. The exact size of a semitone depends on the tuning system used.