The first step towards harmony in Western music, significantly, started with these intervals.
It commenced in the 9th Century, when the single melody line of the traditional plainsong was doubled in parallel octaves, fifths and fourths to form the first organum.
This allowed basses, tenors, altos and sopranos to sing the melody together, each within their own vocal range.
The intervals of the octave and the perfect fifth have ever since remained the two most important building blocks in Western music.
- The octave providing the framework of stability and repetition.
- The fifth generating the primary harmonic driving force, the Dominant to Tonic cadence.
(The Tonic is the first note, the Dominant the fifth note of a major scale)
(Down - Up - Top - Links)
JT 9.7 - Quiz
A.
What are the pitches of the Overtones 2 to 8 for the Fundamental G ?
B.
What are the pitches of the Overtones 2 to 8 for the Fundamental D ?
C.
What are the pitches of the Overtones 2 to 8 for the Fundamental A ?
D.
Given a Low B fundamental produced on a 1280 mm long string.
How long is the wavelength of Overtone No.256, and what is its pitch ?
E.
Complete the Child - Parent - Grandparent Diagram above until all 12 notes of our musical system are included.
Quiz Answers
(Down - Up - Top - Links)
JT 9.8 - Lesson Material
(Up - Top - Links)
© 1998 - 2008 Michael Furstner (Jazclass)