https://dl.dropboxusercontent.com/u/...aguchi%201.jpg

https://dl.dropboxusercontent.com/u/...aguchi%202.jpg

https://dl.dropboxusercontent.com/u/...aguchi%203.jpg


I bought “Improvisation Method” by Yamaguchi. I’m trying to understand what is going on.

1) What is “The Subsets Of Limited Transposition” (S.L.T.) ?

2) What does “the code of the subset” mean? (On ii at The Notation Of A Subset Part "7 = the code of the subset")


Some examples of coding the scales;

7-Note
1 2 3 4 5 6 7 [7-35b] (Major)
1 2 b3 4 5 6 7 [7-34b] (Melodic Minor)
1 2 b3 4 5 b6 7 [7-32b] (Harmonic Mnor)
1 2 b3 b5 5 6 7 [7-32Me] (starting from the 4th degree of Harmonic Major)
1 b3 3 4 5 6 b7 [7-29g]

8-Note
1 2 3 4 5 b6 6 7 [8-26e]
1 2 3 4 5 6 b7 7 [8-23d]
1 2 b3 4 5 6 b7 7 [8-22d]
1 2 b3 4 5 b6 6 7 [8-27e]
1 b2 b3 3 b5 5 b6 b7 [8-27Me]

9-Note
1 2 b3 3 4 5 6 b7 7 [9-9d]
1 2 b3 3 4 5 b6 6 7 [9-11i]

Symmetrical
1 b2 b3 3 b5 5 6 b7 [8-28S]
1 b2 2 3 4 b5 b6 6 b7 [9-12S]
1 2 3 #4 #5 b7 [6-35S]