Tritone is a characteristic tonality interval consisting of three tones. Tritones include increased quarts and decreased fifths. The number of tritones in the key varies depending on the type of scale (natural, harmonic, melodic, doubly harmonic).
Instructions
Step 1
For convenience, represent all tritones within the key, in our case, C major. Since the key has no signs in it, it will be easier for you to focus on the intervals themselves.
In natural major, tritones are built on the fourth step ("fa" - "si" - increased fourth) and seventh ("si" - "fa" - reduced fifth). Note: the second newt is the inversion of the first. The rest of the newts are arranged in pairs, according to the same principle (circulation).
Step 2
In the harmonic major, an additional pair of tritones is formed at the sixth lower degree ("A flat" - "D" - an increased fourth) and the second ("D" - "A flat" - a reduced fifth). In the melodic, a pair is added on the seventh lowered ("B-flat" - "mi" - an increased fourth) and the third ("mi" - "B-flat" - a reduced fifth).
In a doubly harmonic major, the second step is lowered. Thus, the second pair of newts is replaced by a pair from the second lowered ("D-flat" - "G" - "increased" fourth) and the fifth ("G" - "D-flat").
Step 3
Build minor tritones in the key of A minor (the key parallel to C major, also has no signs). The first pair of tritones (in natural minor) is built on the sixth ("fa" - "si" - increased fourth) and the second step ("si" - "fa" - reduced fifth). Please note: the same pair occurs in C major, but the steps have a different numbering. In other words, this newt is common for parallel keys.
Step 4
In harmonic minor, another pair of tritones is built on the fourth and seventh elevated degrees ("re" - "G sharp" - an enlarged fourth and its inversion "G sharp" - "d" - a reduced fifth). Remember: in the natural major, the newt is built on these steps.
Step 5
In the melodic minor key, an additional pair of tritones appears on the third and sixth steps ("C" - "F-sharp" increased fourth and inversion "F-sharp" - "C" - reduced fifth).
In a double-harmonic minor, the pair in the fourth and seventh steps is replaced by a pair in the fourth raised ("re-sharp" - "la" - reduced fifth) and first ("la" - "re-sharp" - increased fourth).
Step 6
In other keys, build newts from the steps indicated in the article. Be guided by the keys at the key and the signs that determine the type of fret.
