The term tritone refers to an interval that spans three whole tones. For example, this could be: C to D, D to E then E to F#. However, another way of looking at it could be as an augmented 4th (C ...

This chord, found in the intro to the song Demi Moore, is a G major triad with a B in the bass ... but adds a very interesting substitution for a D chord to your arsenal. The studio version ...