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LESSON 4
The Trichords and Melodic movements around of 7th steps of the harmonic functions
 
Bb Blues. The main objective of the fourth lesson learn to build musical phrases using the Trichords and Melodic movements around of 7th steps of the harmonic functions. The fourth lesson contains only the Minor Pentatonic Scale. The first and second exercises consist of three pairs of the Blues Changes - one listening example, then in the next repeats exactly the same thing. All samples consist of musical phrases starting and ending notes corresponding 7th steps of the harmonic functions identified in the table in green. Remind you about what is the 7th step of chord. Reference point is the Natural Major Scale in which the steps are marked as follows: 1, 2, 3, 4, 5, 6, 7, 8(the same 1). Chords a combination multiple sounds, forming vertical, built by thirds, that is, we get a series of steps:  1, 3, 5, 7, 9, 11, 13, and all steps may be the altered (lowered or raised) except the first step. In this case, we are interested in chords consisting of four notes: 1, 3, 5, 7. There are five main types of seventh chords: Major 7th 1, 3, 5, 7;  Dominant 7th ("7th chord") 1, 3, 5, 7bMinor 7th 1, 3b, 5, 7bHalf-Diminished 7th 1, 3b, 5b, 7b;  Diminished 7th 1, 3b, 5b, 7bb(6). In the most commonly used in blues is Dominant 7th chord ("7th chord"), the seventh step of the harmonic functions will be on minor 7th (7b) above from the first steps (or on major second down from the eight steps, as well as the eighth and the first steps are the same, easier to calculate down on major second from the first step).  In the first exercise hold out the 7th steps of the harmonic functions, then play: Central Tone, step down, Central Tone (within the framework of the Minor Pentatonic Scale), and then: Central Tone, step up, Central Tone (within the framework of the Minor Pentatonic Scale) 
 
 
 
In the second exercise will build on the seventh steps of the harmonic functions Trichords. The Tonic function is used Upper Triсhord (Blue), built around the 7th step of the Tonic function. The Subdominant function is used Lower Trichord (Red), built around the 7th step of the Subdominant function. The Dominant function is used Lower Trichord (Red), built down from the 7th step of the Dominant function. Sounds included in Trichords same as Melodic movements around of 7th steps of Tonic and in the case of Subdominant same,  but in Dominant Trichords not same as Melodic movements around of 7th steps  
 
 
 
In the third exercise, play in turn using Trichords and Melodic movements around of 7th steps of the harmonic functions. Three tracks in a row, of which the first and third I begin, and the second you start 
 
 
 
In the final fourth exercise of the third lesson also play in turn. Now a little more expand the scope and used as Trichords and Melodic movements around a central tones in connection with the first and 7th steps of the harmonic functions. Three tracks in a row, of which the first and third I begin, and the second you start
 
 
 
 
LESSON 5      CONTENTS