26
Chapter 26Tetrachords
Major Scales
Scaffold
Book2
Unit 7Major Scales
Levelintermediate
Lesson Content
TODO: Write the full lesson explanation here
Examples
TODO: Add notation examples
Key Concepts
tetrachord4-note groupW-W-H patternscale building blocks
Rules
01
A tetrachord is a group of 4 notes with the pattern: Whole-Whole-Half
02
Two tetrachords joined by a whole step = a major scale
03
Lower tetrachord (scale degrees 1-4) + upper tetrachord (5-8)
04
The top note of one tetrachord's key becomes the start of the next key's scale
MIDI Data
{
"tetrachord_pattern": [
0,
2,
4,
5
],
"example_C": [
60,
62,
64,
65
],
"example_G": [
67,
69,
71,
72
]
}Exercises
Practice
1
TODO: Write human exercises for Tetrachords
AI-Generated
1
TODO: Write AI-executable exercises for Tetrachords
Tags
#tetrachord#scale_construction#pattern