In this video lesson, Instructor Pete Pidgeon talks about Diminished Fifth Intervals, which are produced by moving a half step below the fifth note of a minor scale on the guitar.
Video Transcript: PETE PIDGEON: "Here we're going to talk about the diminished fifth. Let's look at the major scale. First note of the major scale, second note, third note, fourth note, fifth note. Now again a diminished fifth is just a half step below or one fret below the fifth. Instead of calling that a minor fifth we call it a diminished fifth. Now this is also the only place on the neck where you could call it a sharp something or an augmented something. You could take the five and raise it up a fret, which we'll see in a minute, we call it an augmented fifth or we could take the four and raise that up and call it an augmented fourth. However, that's pretty rare but you could say sharp four and flat five. We will see that when we get to chords but you could refer to this either as a flat five or a sharp four. It's also known as the tri-tone because it's right in the middle. If you divide an octave into three parts, you've got the root, the octave, and this note that falls right in the middle. Now you've got this shape down one string up one fret until you get to the B string stretch it out by one and then it's back to the same from the B to the E string."
In this course, Guitar Instructor Pete Pidgeon gives 16 video lessons on Guitar Music Theory. We will explain the intricacies involved with guitar intervals within music theory. Pidgeon will begin by explaining what music intervals are and their relation to the neck of the guitar. He'll then begin explaining how to find and create various intervals using the neck of the guitar. Pidgeon will explain the minor second and major second intervals, the difference between perfect and diminished notes, as well as what octaves are and how to locate them. These intervals are great for understanding notation and building upon the foundation of guitar music theory. Watch these videos and begin learning music theory for guitar today.