INTRODUCING A SECONG PARALLEL SIMPLER AND SLOWER LAYER OF HARMONY BELOW THE CHORD PROGRESSION, FROM ONLY 3 ANCIENT (POWER) CHORDS WITHOUT INTERVALS OF THIRDS SO AS TO IMPROVE THE STABILITY AND QUALITY OF ARRANGEMENT .
basic ancient chord still remaing in the tuning of 3-strings instruments
1P=1-5-1' (e.g. D3-A3-D4) Inversion: 1-4-1' (of 4-1'-4')
Alternative power chords
1-1'-5'
The roots of the ancient chords are the tonal, subdominant, and dominant of the relevant mode.
This also means that a simplicial submelody, based on this triad of ancient power chords (one note from each chord as long as it sounds) is a also a simplicial counter-melody, of the melody of the song. It is made from the basic 3 notes, of the relevant mode: Tonal, subdominant, and dominant. It can be enhanced with chromatic bridges linking the basic 3 notes with the appropriate rhythm.
Relatives substitutions for major mode
1M-> 1P
2m-> 4P
3m-> 5P
4M-> 4P
5M-> 5P
6m-> 1P
7d->5P
Relatives substitution for minor mode
1M->6P
2m-> 2P
3m->3P
4M->2P
5M-> 3P
6m->1P
7d-> 2P or 3P
