8,720
edits
Changes
m
→Patterns
fig. 7
whole/semi half |--w --|--w --|-h |--w --|--w --|--w --|-h | note name C D E F G A B C fret on 1st 8 10 12 13 15 17 19 20 0 1 3 5 7 8 stretch |8-----10----12 3--| |---5--------| 7 ring |10----12-13 5---| |--7------| 8 middle |12-13----15 7--8-| |----10 stretch2 |13----15-------|17
The 4-note whole/whole/half tetrachord is present twice in the major scale (C D E F, G A B C). We can see above that a stretch pattern will cover the whole/whole, and a ring pattern will cover the whole/half. Each tetrachord is always followed by whole tone. That half/whole sequence is covered by the middle pattern. This gives us a stretch, ring, and middle pattern for each tetrachord. So we have 2 each of those patterns for 2 tetrachords. All that remains is the whole tone that bridges the two tetrachords. This is represented by "stretch2" above. If we reverse the order of tetrachords (G A B C, C D E F) we notice they overlap on the C - there is no whole or semitone between them - one goes right into the other. Thus, there is no additional 3 note pattern. We have 2 middle, 2 ring, and 3 stretch patterns per scale per octave (given that we need to extend one note past the octave to get the last 3 note pattern - see how the last middle pattern extends nowhere above).
Note how when I start on the 8th fret, I quickly get to 12+ frets. I include their 0-12 fret equivalent on the line below. Notice any fret +/- 12 frets is the same note. For example, 1st string, 3rd fret is G. 15th fret is its octave, also G.
# whole/whole
# whole/half
# half/whole
# whole/whole
# whole/whole
# whole/half
# half/whole
fig. 3
whole/semi |-h |--w --|--w --|--w --|-h |--w --|--w --| note name E F G A B C D E fret on 1st 0 1 3 5 7 8 10 12 stretch |3-----5------| 7 |8-----10-------|12 ring |5-----7---| 8 |-10----12--13 middle |0--1------| 3 |7--8------| 10 stretch2 |1-----3------|5
Here's the same diagram but starting on the E on the 1st string. Now the order is a little different, but I wanted to demonstrate the same principle.
Here we have middle, stretch2, stretch, ring, middle, stretch, ring...repeat.
== What Does this Mean? ==