11) Two Chords Circle Progressions - Minor Mode

[Post #11] In the previous posts we talked about the major mode, now we analyse the circular progressions based on the minor mode. A digression on the origin and nature of the minor mode would take too much space here and could be maybe boring, I just point out a couple of things. To get the minor scale from a major key we must start from the sixth degree of the major scale 1. Let's make a practical example with our C major scale:

The sixth degree of the scale is the note A, so we build the A minor scale starting from this note and having therefore the sequence A, B, C, D, E, F, G.

 
Centuries of musical practice have led to a convention: when the seventh tone of this minor scale (G) moved to the eighth tone (A), it was reduced the interval between the two notes, a semitone replaced a tone and the G became G#. Between the seventh and eighth degree of the minor scale (G# - A) was then recreated the same interval (half step - semitone) that we find between the seventh and eighth grade of the major scale (B - C).
This minor scale is called harmonic and consist of the following notes:
A, B, C, D, E, F, G#. 
Between the sixth and seventh degree of this harmonic minor scale we find an interval that is bigger then a tone (F - G#). This augmented interval was (and still is) often avoided, so that the note F is often changed in F#. This is the melodic minor scale2 which consists of the following notes:
A, B, C, D, E, F#, G# 
-->
As for the major mode, we can now build triads on each degree of the scale. Of course if a degree has  an accidental we can build a triad with the natural or the altered sound. In the minor mode we have therefore more triads to the same degree:
 
-->
The I degree is obviously a minor chord (Am).
On the II degree we have a diminished chord (Bdim, with minor third and diminished fifth) and a minor chord (Bm).
On the III degree we have an A major triad (C) and an augmented chord (C5+ with the fifth note a semitone higher). 
On the IV degree we have a minor chord (Dm) and a major chord (D). Same on the V degree (Em and E).
On the sixth grade we have a major chord (F) and a diminished one (F#dim). Same on the seventh grade (G and G#dim).

-->
By making the circle progressions in the minor mode we also omit some chords: the diminished triads on the II, VI and VII degree, and the augmented triad on the third degree. We can now create our two-chord circle progressions.
Circle progressions based on minor triads:
  1. Am - Bm (I – II progression)
  2. Am - Dm (I – IV progression)
  3. Am - Em (I – V progression)

video

-->
Here instead the progressions based on a minor triad and a major triad:
  1. Am - C (I – III progression)
  2. Am - D (I – IV progression)
  3. Am - E (I-V progression)
  4. Am - F (I – VI progression)
  5. Am - G (I – VII progression)

video

-->
Obviously this applies to all minor keys. We can use the table below to transpose scales and chords:

1 Still in the previous post we explained what are the degrees of the scale.
2 In classical music the harmonic minor scale is played the same way ascending and descending - A, B, C, D, E, F, G# (ascending) - A, G#, F, E, D, C, B, A (descending), while the melodic minor scale uses altered notes in the ascending modus A, B, C, D, E, F#, G#, A and the natural sounds in the descending modus: A, G, F, E, D, C, B, A.

-->


Previous Post Index Next Post


Copyright © Piano Feeling. As always, all material on this site is free, please quote and add a link to the source (this page) if you want to copy somewhere else all or only part of this article. Thanks.

If you find this post interesting or if you like my transcriptions, a small donation would be very appreciated (just click the button in the menu on the right sidebar of this page). It would demonstrates appreciation and would help me to go on making other music covers. Thanks!


Learn To Compose And Notate Music - Beginning LevelLook InsideLearn To Compose And Notate Music - Beginning Level (By Lee Evans and Martha Baker). Evans Piano Education. 24 pages. Published by Hal Leonard (HL.9072)
...more info

Complete IdiotLook InsideComplete Idiot"s Guide to Music Composition For composers. Reference Textbooks; Textbook - General. Complete Idiot"s Guide. Instructional and Composition. Instructional book. 264 pages. Published by Alfred Music Publishing (AP.74-1592574033)
...more info

0 commenti:

Post a Comment

Related Posts Plugin for WordPress, Blogger...