-extern Rational DOUBLE_FLAT_ALTERATION;
-extern Rational THREE_Q_FLAT_ALTERATION;
-extern Rational FLAT_ALTERATION;
-extern Rational SEMI_FLAT_ALTERATION;
-extern Rational NATURAL_ALTERATION;
-extern Rational SEMI_SHARP_ALTERATION;
-extern Rational SHARP_ALTERATION;
-extern Rational THREE_Q_SHARP_ALTERATION;
-extern Rational DOUBLE_SHARP_ALTERATION;
+extern Rational DOUBLE_FLAT_ALTERATION;
+extern Rational THREE_Q_FLAT_ALTERATION;
+extern Rational FLAT_ALTERATION;
+extern Rational SEMI_FLAT_ALTERATION;
+extern Rational NATURAL_ALTERATION;
+extern Rational SEMI_SHARP_ALTERATION;
+extern Rational SHARP_ALTERATION;
+extern Rational THREE_Q_SHARP_ALTERATION;
+extern Rational DOUBLE_SHARP_ALTERATION;