I am really not knowledgable in ancient music theory so the following might be riddled with errors, but here is what I've gathered.
What are the original Greek modes?
Ancient Greek music scale theory was built upon the concept of the "tetrachord" - literally meaning four strings. A tetrachord consists of a group of four notes with three smaller intervals ...
I'm no expert on ancient Greek music, but Pythagoras did not invent the three tetrachord genera. It does appear that his mathematical work heavily influenced others who defined ancient music theory.
Pythagoras was born in the 6th century BCE, and he was the first to work out ratios of string ...
Since no one actually answered I'll give it a try.
A tetrachord is a specific melodic sequence of steps, specifically
Whole - Whole - Half
As an example, Do, Re, Mi, Fa, the first 4 notes of the major scale. The next 4 notes are also a tetrachord, Sol, La, Ti, Do. The Major scale is built from 2 tetrachords separated by a whole step.
Chords, on the ...