Comment a couple of ambiguous chords

I noticed these while going through Bach's Prelude #1, comparing what
scherzo gave with what Andrea Pauly gave for each chord.

The right thing to do is probably to make scherzo display all chord
names (and spellings) when more than one chord naming can be matched
against a set of notes.

diff --git a/scherzo.c b/scherzo.c
index 4882cc941adba776cacc4890cfcb3567267d717d..b0a6414781c75fa71b82471578470c31e0757853 100644 (file)
--- a/scherzo.c
+++ b/scherzo.c
@@ -677,7 +677,7 @@ scherzo_analyze_chord (scherzo_t *scherzo)
     struct { modified_degree_t degrees[4]; const char *name; } tetrachords[] = {
        /* Sixth chords */
        { {{1, 0}, {4,  0}, {5,  0}, {6,  0}}, "6sus" },
-       { {{1, 0}, {3,  0}, {5,  0}, {6,  0}}, "6" },
+       { {{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}}, "m6sus2" },
        /* Seventh chords */
@@ -700,7 +700,7 @@ scherzo_analyze_chord (scherzo_t *scherzo)
        { {{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" },
+       { {{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}}, "M9sus" },
        { {{1, 0}, {9,  0}, {4,  0}, {7, -1}}, "9sus" },