classic_progressions.rb in coltrane-1.0.24

- old
+ new
@@ -2,39 +2,18 @@
 
 module Coltrane
   # It's totally a wip yet.
   module ClassicProgressions
     PROGRESSIONS = {
-      pop:        [:major, [1, 5, 6, 4]],
-      fifties:    [:major, [1, 6, 4, 5]],
-      blues:      [:major, [1, 4, 1, 5, 4, 1]],
-      jazz:       [:major, [2, 5, 1]],
-      jazz_minor: [:minor, [2, 5, 1]],
-      andalusian: [:minor, [1, 7, 6, 5]]
+      'Pop'          => %w[I V vi IV],
+      'Blues'        => %w[I I I I IV IV I I V IV I I],
+      # 'Jazz Blues'   => %w[I7 IV7 I7 I7 F7 F7 I7 ]
+      'Fifties'      => %w[I IV V],
+      # pop:        [:major, [1, 5, 6, 4]],
+      # fifties:    [:major, [1, 6, 4, 5]],
+      # blues:      [:major, [1, 4, 1, 5, 4, 1]],
+      # jazz:       [:major, [2, 5, 1]],
+      # jazz_minor: [:minor, [2, 5, 1]],
+      # andalusian: [:minor, [1, 7, 6, 5]]
     }.freeze
-
-    def pop(tone)
-      scale, degrees = PROGRESSIONS[:pop]
-      Scale.public_send(scale, tone).progression(*degrees)
-    end
-
-    def fifties(tone)
-      scale, degrees = PROGRESSIONS[:fifties]
-      Scale.public_send(scale, tone).progression(*degrees)
-    end
-
-    def blues(tone)
-      scale, degrees = PROGRESSIONS[:blues]
-      Scale.public_send(scale, tone).progression(*degrees)
-    end
-
-    def jazz(tone)
-      scale, degrees = PROGRESSIONS[:jazz]
-      Scale.public_send(scale, tone).progression(*degrees)
-    end
-
-    def andalusian(tone)
-      scale, degrees = PROGRESSIONS[:andalusian]
-      Scale.public_send(scale, tone).progression(*degrees)
-    end
   end
 end