X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=scherzo.c;h=5c24a543baaf4e4f63a38d304fabacfd57f8c786;hb=3f6802b662f5e8c13fa44ea2e500da722f654a73;hp=c56e18b627ca3a4c3450c7c274852c853fcb6c5e;hpb=f9f17cead3713b491c291cc26de540fbf44ceed1;p=scherzo diff --git a/scherzo.c b/scherzo.c index c56e18b..5c24a54 100644 --- a/scherzo.c +++ b/scherzo.c @@ -497,7 +497,7 @@ _chord_signature_matches (analyzed_note_t *notes, int inversion, score_pitch_t *root) { -#define MAX_DEGREES 5 +#define MAX_DEGREES 6 int relative_pitches[MAX_DEGREES]; int i, root_index; @@ -665,43 +665,61 @@ scherzo_analyze_chord (scherzo_t *scherzo) #define SUP "" #define PUS "" - struct { modified_degree_t degrees[3]; const char *name; } triads[] = { + struct { modified_degree_t degrees[3]; const char *name; } trichords[] = { + /* Triads */ { {{1, 0}, {3, +1}, {5, 0}}, "sus" }, { {{1, 0}, {3, 0}, {5, +1}}, SUP "+" PUS }, { {{1, 0}, {3, 0}, {5, 0}}, "" }, { {{1, 0}, {3, -1}, {5, 0}}, "m" }, { {{1, 0}, {3, -1}, {5, -1}}, "°" }, - { {{1, 0}, {2, 0}, {5, 0}}, "msus2" } + { {{1, 0}, {2, 0}, {5, 0}}, "msus2" }, + /* Seventh chords with no 3rd */ + { {{1, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS }, + { {{1, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS }, + { {{1, 0}, {5, 0}, {7, 0}}, "M7" }, + { {{1, 0}, {5, 0}, {7, -1}}, "7" }, + { {{1, 0}, {5, -1}, {7, -1}}, "7♭5" }, + /* Seventh chords with no 5th */ + { {{1, 0}, {4, 0}, {7, 0}}, "M7sus" }, + { {{1, 0}, {4, 0}, {7, -1}}, "7sus" }, + { {{1, 0}, {3, 0}, {7, 0}}, "M7" }, + { {{1, 0}, {3, 0}, {7, -1}}, "7" }, + { {{1, 0}, {3, -1}, {7, 0}}, "m" SUP "M7" PUS }, + { {{1, 0}, {3, -1}, {7, -1}}, "m7" }, + { {{1, 0}, {2, 0}, {7, 0}}, "m" SUP "M7" PUS "sus2" }, + { {{1, 0}, {2, 0}, {7, -1}}, "m7sus2" }, }; struct { modified_degree_t degrees[4]; const char *name; } tetrachords[] = { /* Sixth chords */ - { {{1, 0}, {4, 0}, {5, 0}, {6, 0}}, "sus" SUP "6" PUS }, - { {{1, 0}, {3, 0}, {5, 0}, {6, 0}}, "6" }, + { {{1, 0}, {4, 0}, {5, 0}, {6, 0}}, "6sus" }, + { {{1, 0}, {3, 0}, {5, 0}, {6, 0}}, "6" }, /* Ambiguous with m7 */ { {{1, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6" }, - { {{1, 0}, {2, 0}, {5, 0}, {6, 0}}, "msus2" SUP "6" PUS }, + { {{1, 0}, {2, 0}, {5, 0}, {6, 0}}, "m6sus2" }, /* Seventh chords */ - { {{1, 0}, {4, 0}, {5, 0}, {7, 0}}, "sus" SUP "M7" PUS }, - { {{1, 0}, {4, 0}, {5, 0}, {7, -1}}, "sus" SUP "7" PUS }, - { {{1, 0}, {4, 0}, {5, -1}, {7, -1}}, "sus" SUP "7♭5" PUS }, + { {{1, 0}, {4, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS "sus" }, + { {{1, 0}, {4, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS "sus" }, + { {{1, 0}, {4, 0}, {5, 0}, {7, 0}}, "M7sus" }, + { {{1, 0}, {4, 0}, {5, 0}, {7, -1}}, "7sus" }, + { {{1, 0}, {4, 0}, {5, -1}, {7, -1}}, "7♭5sus" }, { {{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, 0}, {5, -1}, {7, -1}}, "7♭5" }, { {{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 }, - { {{1, 0}, {2, 0}, {5, 0}, {7, 0}}, "msus2" SUP "M7" PUS }, - { {{1, 0}, {2, 0}, {5, 0}, {7, -1}}, "msus2" SUP "7" PUS }, - { {{1, 0}, {2, 0}, {5, -1}, {7, 0}}, "msus2°" SUP "M7" PUS }, - { {{1, 0}, {2, 0}, {5, -1}, {7, -1}}, "msus2𝆩" SUP "7" PUS }, - { {{1, 0}, {2, 0}, {5, -1}, {7, -2}}, "msus2°" SUP "7" PUS }, + { {{1, 0}, {2, 0}, {5, 0}, {7, 0}}, "m" SUP "M7" PUS "sus2" }, + { {{1, 0}, {2, 0}, {5, 0}, {7, -1}}, "m7sus2" }, + { {{1, 0}, {2, 0}, {5, -1}, {7, 0}}, "°" SUP "M7" PUS "sus2" }, + { {{1, 0}, {2, 0}, {5, -1}, {7, -1}}, "𝆩" SUP "7" PUS "sus2" }, + { {{1, 0}, {2, 0}, {5, -1}, {7, -2}}, "°" SUP "7" PUS "sus2" }, /* Ambiguous with 7 */ /* Ninth chords voiced with no 5th */ - { {{1, 0}, {9, 0}, {4, 0}, {7, 0}}, "sus" SUP "M9" PUS }, - { {{1, 0}, {9, 0}, {4, 0}, {7, -1}}, "sus" SUP "9" PUS }, + { {{1, 0}, {9, 0}, {4, 0}, {7, 0}}, "M9sus" }, + { {{1, 0}, {9, 0}, {4, 0}, {7, -1}}, "9sus" }, { {{1, 0}, {9, 0}, {3, 0}, {7, 0}}, "M9" }, { {{1, 0}, {9, 0}, {3, 0}, {7, -1}}, "9" }, { {{1, 0}, {9, 0}, {3, -1}, {7, 0}}, "m" SUP "M9" PUS }, @@ -713,10 +731,20 @@ scherzo_analyze_chord (scherzo_t *scherzo) * after reducing each degree to an actual scale degree, (9 -> 2, * 11 -> 4, 13 -> 6) */ struct { modified_degree_t degrees[5]; const char *name; } pentachords[] = { - { {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, 0}}, "sus" SUP "+M9" PUS }, - { {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, -1}}, "sus" SUP "+9" PUS }, - { {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, 0}}, "sus" SUP "M9" PUS }, - { {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, -1}}, "sus" SUP "9" PUS }, + /* Sixth plus 9 */ + { {{1, 0}, {9, 0}, {3, 0}, {5, 0}, {6, 0}}, "6/9" }, + { {{1, 0}, {9, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6/9" }, + { {{1, 0}, {9, -1}, {3, -1}, {5, 0}, {6, 0}}, "m6/♭9" }, + /* Seventh plus altered 9 */ + { {{1, 0}, {9, +1}, {3, 0}, {5, 0}, {7, -1}}, "7♯9" }, + { {{1, 0}, {9, -1}, {3, 0}, {5, 0}, {7, -1}}, "7♭9" }, + { {{1, 0}, {9, +1}, {3, 0}, {5, -1}, {7, -1}}, "7♭5♯9" }, + { {{1, 0}, {9, -1}, {3, 0}, {5, -1}, {7, -1}}, "7♭5♭9" }, + /* Ninth chords */ + { {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, 0}}, SUP "+M9" PUS "sus" }, + { {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, -1}}, SUP "+9" PUS "sus" }, + { {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, 0}}, "M9sus" }, + { {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, -1}}, "9sus" }, { {{1, 0}, {9, 0}, {3, 0}, {5, +1}, {7, 0}}, SUP "+M9" PUS }, { {{1, 0}, {9, 0}, {3, 0}, {5, +1}, {7, -1}}, SUP "+9" PUS }, @@ -740,6 +768,17 @@ scherzo_analyze_chord (scherzo_t *scherzo) { {{1, 0}, {9, -1}, {3, -1}, {5, -1}, {7, -2}}, "°" SUP "♭9" PUS }, }; + struct { modified_degree_t degrees[6]; const char *name; } hexachords[] = { + { {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, +1}, {7, 0}}, SUP "+M11" PUS }, + { {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, +1}, {7, -1}}, SUP "+11" PUS }, + { {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, 0}, {7, 0}}, "M11" }, + { {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, 0}, {7, -1}}, "11" }, + { {{1, 0}, {9, 0}, {3, -1}, {11, 0}, {5, 0}, {7, 0}}, "m" SUP "M11" PUS }, + { {{1, 0}, {9, 0}, {3, -1}, {11, 0}, {5, 0}, {7, -1}}, "m11" }, + { {{1, 0}, {9, -1}, {3, -1}, {11, 0}, {5, -1}, {7, -1}}, "𝆩" SUP "11" PUS }, + { {{1, 0}, {9, -1}, {3, -1}, {11, -1}, {5, -1}, {7, -2}}, "°" SUP "11" PUS } + }; + if (scherzo->chord) { score_remove_chord (scherzo->chord); scherzo->chord = NULL; @@ -827,12 +866,12 @@ scherzo_analyze_chord (scherzo_t *scherzo) } break; case 3: - for (i = 0; i < ARRAY_SIZE (triads); i++) { + for (i = 0; i < ARRAY_SIZE (trichords); i++) { if (_chord_signature_matches (notes, num_notes, - triads[i].degrees, 3, + trichords[i].degrees, 3, inversion, &root)) { - chord_name = triads[i].name; + chord_name = trichords[i].name; goto CHORD_NAME_KNOWN; } } @@ -859,6 +898,17 @@ scherzo_analyze_chord (scherzo_t *scherzo) } } break; + case 6: + for (i = 0; i < ARRAY_SIZE (hexachords); i++) { + if (_chord_signature_matches (notes, num_notes, + hexachords[i].degrees, 6, + inversion, &root)) + { + chord_name = hexachords[i].name; + goto CHORD_NAME_KNOWN; + } + } + break; } } CHORD_NAME_KNOWN: