The third ordered list is the Circle of 4ths. The Circle of 4ths/5ths helps us navigate the fret board going across it. The Circle of 5ths is just the Circle of 4th’s in reverse and is that way because of how the guitar is tuned when in standard tuning. From the interval perspective, the Circle of 4ths is 1, 4, b7, b3, b6, b2, b5, 7, 3, 6, 2, 5, 1. From the note perspective, the Circle of 4ths is A, D, G, C, F, A#/Bb, D#/Eb, G#/Ab, C#/Db, F#/Gb, B, E. As we will see later in these lessons, the Circle of 4ths gives us a trick to memorizing the modes. Once someone has these three ordered lists memorized they have a really good conceptual understanding of what is a guitar—at least is a guitar in standard tuning.
Back to Media Efficiency Taxonomy.