What are the notes of the devil's chord?
In music a tritone consists of two notes that are three whole steps apart, such as “C” to “F#.” Not found in either the major or minor scales, and due to its discordant sound, it has been called “the Devil's Chord.”
What note is the devil's note?
The so-called Devil's interval is the tritone. Play any note, and the one that is three tones away is the tritone. It's in between the two other important notes in a scale, the P4 and P5. Just as far in semitones as you can get from the original note, either way.
Why is the tritone evil?
There's a tale behind that moniker: In those pious days of the Middle Ages, the tritone was so unpleasing that it was considered the work of the devil, leading church authorities ban its use in ecclesiastical music.