The Tritone, Everything You Need to Know

Over time, the tritone has become more prominent in American blues and jazz and is often referred to as one of the blue notes. The tritone itself is not very easy to sing. Important to mention here are melodies in blues music. The so-called “blue note” is a lowered-fifth and a tritone with the root note.…

Tritone - Wikipedia

In classical music, the tritone is a harmonic and melodic dissonance and is important in the study of musical harmony. The tritone can be used to avoid traditional tonality: "Any tendency for a tonality to emerge may be avoided by introducing a note three whole tones distant from …Abbreviation: TT, A4, d5…