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Blues Isomorphisms As a method of practicing, I have applied the term "isomorphism' (having the same shape) to families of blues figures. In the examples in the file below, you will see a figure written on the top staff of each page. Beneath this figure, are two ways of fingering, shown in tablature. Each method of fingering share the same basic shape, with adjustments made in order to compensate for the major 3rd between strings 2 and 3. Beneath these two tabs is a transposition of the first figure at the top of the page. This transposition preserves the distance between steps of the blues scale. Beneath this staff are two tabluture representations of this transposition. These fingerings maintain the same basic shape as the fingerings in the first two tabs. The next line is a written transposition of the previous written line. Beneath it are two tabs that use the same fingering shapes as the other tabs. Since all 6 of these shapes share a basic pattern, I call them isomorphic. Working with isomorphic blues patterns has been an enormous help in developing blues reflexes.
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