- struct { int pitches[4]; const char *name; } sevenths[] = {
- { {0, 4, 8, 11}, "Augmented/major 7" },
- { {0, 4, 7, 11}, "Major 7" },
- { {0, 4, 7, 10}, "Dominant 7" },
- { {0, 3, 7, 11}, "Minor/major 7" },
- { {0, 3, 7, 10}, "Minor 7" },
- { {0, 3, 6, 10}, "Half-diminished 7" },
- { {0, 3, 6, 9}, "Diminished 7" },
- { {0, 4, 8, 10}, "Augmented 7" },
- { {0, 3, 6, 11}, "Diminished/major 7" },
+ struct { modified_degree_t degrees[4]; const char *name; } tetrachords[] = {
+ /* Sixth chords */
+ { {{1, 0}, {3, 0}, {5, 0}, {6, 0}}, "6" },
+ { {{1, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6" },
+ /* Seventh chords */
+ { {{1, 0}, {3, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS },
+ { {{1, 0}, {3, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS },
+ { {{1, 0}, {3, 0}, {5, 0}, {7, 0}}, "M7" },
+ { {{1, 0}, {3, 0}, {5, 0}, {7, -1}}, "7" },
+ { {{1, 0}, {3, 0}, {5, -1}, {7, -1}}, SUP "7♭5" PUS },
+ { {{1, 0}, {3, -1}, {5, 0}, {7, 0}}, "m" SUP "M7" PUS },
+ { {{1, 0}, {3, -1}, {5, 0}, {7, -1}}, "m7" },
+ { {{1, 0}, {3, -1}, {5, -1}, {7, 0}}, "°" SUP "M7" PUS },
+ { {{1, 0}, {3, -1}, {5, -1}, {7, -1}}, "𝆩" SUP "7" PUS },
+ { {{1, 0}, {3, -1}, {5, -1}, {7, -2}}, "°" SUP "7" PUS }