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  • Lesson Title:

    Important Intervals: Octave & Fifth

  • Guitar Instructor: Christopher Schlegel
  • Lesson Added: October 2nd, 2009
  • Lesson Files: Guitar Tab, Notation
  • Lesson Difficulty: Intermediate
  • Lesson Focus: Theory
  • Lesson Style: All Styles
  • Lesson Keywords: circle of fifths, what is the circle of fifths, using the circle of fifths
Guitar Instructor
The idea of the circle of fifths is essentially based on this one idea: the musical interval of a fifth is important in music theory.

Let's explore why!

The octave is the most important interval. It is the foundation upon which Western Tonality and Music Theory is built. Measured in hertz the distance from one pitch to a pitch one octave higher is exactly doubled.

The A on the open 5th string of a guitar is 110Hz. The A an octave higher at the 12th fret of the 5th string is 220Hz. These two A's are one octave apart. The interval of a fifth is the musical distance of 7 half steps (or 7 frets on the same string) between any two notes. So, start on the open A string (the 5th string) and regard that as your starting note, your root note. Go up 7 frets and you have the note E. The distance between this A and E i...

End Guitar Video

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