Editing Tritone (section)

=== Broad interpretation (chromatic scale) ===
In a [[chromatic scale]], the interval between any note and the previous or next is a semitone. Using the notes of a chromatic scale, each tone can be divided into two semitones:
: ''T = S+S''

For instance, the tone from C to D (in short, C–D) can be decomposed into the two semitones C–C{{Music|sharp}} and C{{Music|sharp}}–D by using the note C{{Music|sharp}}, which in a chromatic scale lies between C and D. This means that, when a chromatic scale is used, a tritone can be also defined as any musical interval spanning six semitones:

: ''TT = T+T+T = S+S+S+S+S+S''.

According to this definition, with the twelve notes of a chromatic scale it is possible to define twelve different tritones, each starting from a different note and ending six notes above it. Although all of them span six semitones, six of them are classified as ''augmented fourth''s, and the other six as ''diminished fifths''.