* keyboard". Any "piano keyboard" key knows its own octave and
* accidental already. */
int keyboard_octave;
- score_pitch_accidental_t keyboard_accidental;
+ pitch_accidental_t keyboard_accidental;
int midi_fd;
snd_midi_event_t *snd_midi_event;
/* Forward declarations. */
static score_note_t *
-scherzo_press_note (scherzo_t *scherzo, score_pitch_t pitch, int octave);
+scherzo_press_note (scherzo_t *scherzo, pitch_t pitch, int octave);
static void
-scherzo_release_note (scherzo_t *scherzo, score_pitch_t pitch, int octave);
+scherzo_release_note (scherzo_t *scherzo, pitch_t pitch, int octave);
static void
scherzo_press_pedal (scherzo_t *scherzo);
scherzo_t *scherzo = user_data;
int octave;
/* Initialize to keep the compiler quiet. */
- score_pitch_name_t pitch_name = SCORE_PITCH_C;
- score_pitch_t pitch;
+ pitch_name_t pitch_name = PITCH_NATURAL (C);
+ pitch_t pitch;
if (scherzo->challenge.note)
octave = scherzo->challenge.note->octave;
return FALSE;
case GDK_KEY_c:
case GDK_KEY_C:
- pitch_name = SCORE_PITCH_NAME_C;
+ pitch_name = PITCH_NAME_C;
break;
case GDK_KEY_d:
case GDK_KEY_D:
- pitch_name = SCORE_PITCH_NAME_D;
+ pitch_name = PITCH_NAME_D;
break;
case GDK_KEY_e:
case GDK_KEY_E:
- pitch_name = SCORE_PITCH_NAME_E;
+ pitch_name = PITCH_NAME_E;
break;
case GDK_KEY_f:
case GDK_KEY_F:
- pitch_name = SCORE_PITCH_NAME_F;
+ pitch_name = PITCH_NAME_F;
break;
case GDK_KEY_g:
case GDK_KEY_G:
- pitch_name = SCORE_PITCH_NAME_G;
+ pitch_name = PITCH_NAME_G;
break;
case GDK_KEY_a:
case GDK_KEY_A:
- pitch_name = SCORE_PITCH_NAME_A;
+ pitch_name = PITCH_NAME_A;
break;
case GDK_KEY_b:
case GDK_KEY_B:
- pitch_name = SCORE_PITCH_NAME_B;
+ pitch_name = PITCH_NAME_B;
break;
case GDK_KEY_0:
case GDK_KEY_1:
scherzo_press_pedal (scherzo);
break;
case GDK_KEY_Up:
- if (scherzo->keyboard_accidental < SCORE_PITCH_ACCIDENTAL_DOUBLE_SHARP)
+ if (scherzo->keyboard_accidental < PITCH_ACCIDENTAL_DOUBLE_SHARP)
scherzo->keyboard_accidental++;
break;
case GDK_KEY_Down:
- if (scherzo->keyboard_accidental > SCORE_PITCH_ACCIDENTAL_DOUBLE_FLAT)
+ if (scherzo->keyboard_accidental > PITCH_ACCIDENTAL_DOUBLE_FLAT)
scherzo->keyboard_accidental--;
break;
}
- pitch = SCORE_PITCH (pitch_name, scherzo->keyboard_accidental);
+ pitch = PITCH (pitch_name, scherzo->keyboard_accidental);
if ((key->keyval >= GDK_KEY_A && key->keyval <= GDK_KEY_G) ||
(key->keyval >= GDK_KEY_a && key->keyval <= GDK_KEY_g))
scherzo_t *scherzo = user_data;
int octave;
/* Initialize to keep the compiler quiet. */
- score_pitch_name_t pitch_name = SCORE_PITCH_NAME_C;
- score_pitch_t pitch;
+ pitch_name_t pitch_name = PITCH_NAME_C;
+ pitch_t pitch;
if (scherzo->challenge.note)
octave = scherzo->challenge.note->octave;
switch (key->keyval) {
case GDK_KEY_c:
case GDK_KEY_C:
- pitch_name = SCORE_PITCH_NAME_C;
+ pitch_name = PITCH_NAME_C;
break;
case GDK_KEY_d:
case GDK_KEY_D:
- pitch_name = SCORE_PITCH_NAME_D;
+ pitch_name = PITCH_NAME_D;
break;
case GDK_KEY_e:
case GDK_KEY_E:
- pitch_name = SCORE_PITCH_NAME_E;
+ pitch_name = PITCH_NAME_E;
break;
case GDK_KEY_f:
case GDK_KEY_F:
- pitch_name = SCORE_PITCH_NAME_F;
+ pitch_name = PITCH_NAME_F;
break;
case GDK_KEY_g:
case GDK_KEY_G:
- pitch_name = SCORE_PITCH_NAME_G;
+ pitch_name = PITCH_NAME_G;
break;
case GDK_KEY_a:
case GDK_KEY_A:
- pitch_name = SCORE_PITCH_NAME_A;
+ pitch_name = PITCH_NAME_A;
break;
case GDK_KEY_b:
case GDK_KEY_B:
- pitch_name = SCORE_PITCH_NAME_B;
+ pitch_name = PITCH_NAME_B;
break;
case GDK_KEY_space:
scherzo_release_pedal (scherzo);
break;
}
- pitch = SCORE_PITCH (pitch_name, scherzo->keyboard_accidental);
+ pitch = PITCH (pitch_name, scherzo->keyboard_accidental);
if ((key->keyval >= GDK_KEY_A && key->keyval <= GDK_KEY_G) ||
(key->keyval >= GDK_KEY_a && key->keyval <= GDK_KEY_g))
}
static unsigned char
-_score_pitch_and_octave_to_midi (score_pitch_t pitch,
+_pitch_and_octave_to_midi (pitch_t pitch,
int octave)
{
unsigned char midi_note = 12 * (octave + 1);
- switch (SCORE_PITCH_NAME (pitch)) {
- case SCORE_PITCH_NAME_C:
+ switch (PITCH_NAME (pitch)) {
+ case PITCH_NAME_C:
break;
- case SCORE_PITCH_NAME_D:
+ case PITCH_NAME_D:
midi_note += 2;
break;
- case SCORE_PITCH_NAME_E:
+ case PITCH_NAME_E:
midi_note += 4;
break;
- case SCORE_PITCH_NAME_F:
+ case PITCH_NAME_F:
midi_note += 5;
break;
- case SCORE_PITCH_NAME_G:
+ case PITCH_NAME_G:
midi_note += 7;
break;
- case SCORE_PITCH_NAME_A:
+ case PITCH_NAME_A:
midi_note += 9;
break;
- case SCORE_PITCH_NAME_B:
+ case PITCH_NAME_B:
midi_note += 11;
break;
}
- switch (SCORE_PITCH_ACCIDENTAL (pitch)) {
- case SCORE_PITCH_ACCIDENTAL_DOUBLE_FLAT:
+ switch (PITCH_ACCIDENTAL (pitch)) {
+ case PITCH_ACCIDENTAL_DOUBLE_FLAT:
midi_note -= 2;
break;
- case SCORE_PITCH_ACCIDENTAL_FLAT:
+ case PITCH_ACCIDENTAL_FLAT:
midi_note -= 1;
break;
- case SCORE_PITCH_ACCIDENTAL_NATURAL:
+ case PITCH_ACCIDENTAL_NATURAL:
break;
- case SCORE_PITCH_ACCIDENTAL_SHARP:
+ case PITCH_ACCIDENTAL_SHARP:
midi_note += 1;
break;
- case SCORE_PITCH_ACCIDENTAL_DOUBLE_SHARP:
+ case PITCH_ACCIDENTAL_DOUBLE_SHARP:
midi_note += 2;
break;
}
return midi_note;
}
+/* octave can optionally by NULL */
static void
-_midi_to_score_pitch_and_octave (unsigned char midi_note,
- score_pitch_t *pitch,
+_midi_to_pitch_and_octave (unsigned char midi_note,
+ pitch_t *pitch,
int *octave)
{
- *octave = midi_note / 12 - 1;
+ if (octave)
+ *octave = midi_note / 12 - 1;
switch (midi_note % 12)
{
case 0:
- *pitch = SCORE_PITCH_C;
+ *pitch = PITCH_LITERAL (C, NATURAL);
break;
case 1:
- *pitch = SCORE_PITCH_Cs;
+ *pitch = PITCH_LITERAL (C, SHARP);
break;
case 2:
- *pitch = SCORE_PITCH_D;
+ *pitch = PITCH_LITERAL (D, NATURAL);
break;
case 3:
- *pitch = SCORE_PITCH_Ds;
+ *pitch = PITCH_LITERAL (D, SHARP);
break;
case 4:
- *pitch = SCORE_PITCH_E;
+ *pitch = PITCH_LITERAL (E, NATURAL);
break;
case 5:
- *pitch = SCORE_PITCH_F;
+ *pitch = PITCH_LITERAL (F, NATURAL);
break;
case 6:
- *pitch = SCORE_PITCH_Fs;
+ *pitch = PITCH_LITERAL (F, SHARP);
break;
case 7:
- *pitch = SCORE_PITCH_G;
+ *pitch = PITCH_LITERAL (G, NATURAL);
break;
case 8:
- *pitch = SCORE_PITCH_Gs;
+ *pitch = PITCH_LITERAL (G, SHARP);
break;
case 9:
- *pitch = SCORE_PITCH_A;
+ *pitch = PITCH_LITERAL (A, NATURAL);
break;
case 10:
- *pitch = SCORE_PITCH_As;
+ *pitch = PITCH_LITERAL (A, SHARP);
break;
case 11:
- *pitch = SCORE_PITCH_B;
+ *pitch = PITCH_LITERAL (B, NATURAL);
break;
}
}
_modified_degree_to_half_steps (const modified_degree_t *degree)
{
int half_steps;
+ int scale_degree = degree->degree;
+
+ /* Restrict to actual degrees within a scale. */
+ if (scale_degree > 7)
+ scale_degree = (scale_degree % 8) + 1;
/* Number of half steps from root to specified degree within a
- * diatonic scaled. */
- switch (degree->degree) {
+ * diatonic scale. */
+ switch (scale_degree) {
case 1:
half_steps = 0;
break;
return half_steps + degree->modification;
}
+/* Number of half steps from 'root' up to 'pitch' (that is, counting
+ * the steps up a chromatic scale). */
+static int
+_pitch_from_root_in_half_steps (pitch_t pitch, pitch_t root)
+{
+ int root_midi = _pitch_and_octave_to_midi (root, 0);
+ int pitch_midi = _pitch_and_octave_to_midi (pitch, 0);
+
+ if (pitch_midi < root_midi)
+ pitch_midi += 12;
+
+ if (pitch_midi < root_midi) {
+ fprintf (stderr, "Internal error: midi values differ by more than expected.\n");
+ exit (1);
+ }
+
+ return (pitch_midi - root_midi) % 12;
+}
+
static int
_chord_signature_matches (analyzed_note_t *notes,
int num_notes,
modified_degree_t *degrees,
int num_degrees,
int inversion,
- score_pitch_t *root)
+ pitch_t *root)
{
-#define MAX_DEGREES 4
+#define MAX_DEGREES 6
int relative_pitches[MAX_DEGREES];
int i, root_index;
}
static const char *
-_pitch_str (score_pitch_t pitch)
+_pitch_str (pitch_t pitch)
{
- switch (pitch) {
- case SCORE_PITCH_Cff:
- return "C𝄫";
- case SCORE_PITCH_Cf:
- return "C♭";
- case SCORE_PITCH_C:
- return "C";
- case SCORE_PITCH_Cs:
- return "C♯";
- case SCORE_PITCH_Css:
- return "C𝄪";
- case SCORE_PITCH_Dff:
- return "D𝄫";
- case SCORE_PITCH_Df:
- return "D♭";
- case SCORE_PITCH_D:
- return "D";
- case SCORE_PITCH_Ds:
- return "D♯";
- case SCORE_PITCH_Dss:
- return "D𝄪";
- case SCORE_PITCH_Eff:
- return "E𝄫";
- case SCORE_PITCH_Ef:
- return "E♭";
- case SCORE_PITCH_E:
- return "E";
- case SCORE_PITCH_Es:
- return "E♯";
- case SCORE_PITCH_Ess:
- return "E𝄪";
- case SCORE_PITCH_Fff:
- return "F𝄫";
- case SCORE_PITCH_Ff:
- return "F♭";
- case SCORE_PITCH_F:
- return "F";
- case SCORE_PITCH_Fs:
- return "F♯";
- case SCORE_PITCH_Fss:
- return "F𝄪";
- case SCORE_PITCH_Gff:
- return "G𝄫";
- case SCORE_PITCH_Gf:
- return "G♭";
- case SCORE_PITCH_G:
- return "G";
- case SCORE_PITCH_Gs:
- return "G♯";
- case SCORE_PITCH_Gss:
- return "G𝄪";
- case SCORE_PITCH_Aff:
- return "A𝄫";
- case SCORE_PITCH_Af:
- return "A♭";
- case SCORE_PITCH_A:
- return "A";
- case SCORE_PITCH_As:
- return "A♯";
- case SCORE_PITCH_Ass:
- return "A𝄪";
- case SCORE_PITCH_Bff:
- return "B𝄫";
- case SCORE_PITCH_Bf:
- return "B♭";
- case SCORE_PITCH_B:
- return "B";
- case SCORE_PITCH_Bs:
- return "B♯";
- case SCORE_PITCH_Bss:
- return "B𝄪";
+ static char double_flat[] = "X𝄫";
+ static char flat[] = "X♭";
+ static char natural[] = "X";
+ static char sharp[] = "X♯";
+ static char double_sharp[] = "X𝄪";
+ char *ret;
+
+ switch (PITCH_ACCIDENTAL (pitch)) {
+ case PITCH_ACCIDENTAL_DOUBLE_FLAT:
+ ret = double_flat;
+ break;
+ case PITCH_ACCIDENTAL_FLAT:
+ ret = flat;
+ break;
+ case PITCH_ACCIDENTAL_NATURAL:
+ ret = natural;
+ break;
+ case PITCH_ACCIDENTAL_SHARP:
+ ret = sharp;
+ break;
+ case PITCH_ACCIDENTAL_DOUBLE_SHARP:
+ ret = double_sharp;
+ break;
+ }
+
+ switch (PITCH_NAME(pitch)) {
+ case PITCH_NAME_C:
+ ret[0] = 'C';
+ break;
+ case PITCH_NAME_D:
+ ret[0] = 'D';
+ break;
+ case PITCH_NAME_E:
+ ret[0] = 'E';
+ break;
+ case PITCH_NAME_F:
+ ret[0] = 'F';
+ break;
+ case PITCH_NAME_G:
+ ret[0] = 'G';
+ break;
+ case PITCH_NAME_A:
+ ret[0] = 'A';
+ break;
+ case PITCH_NAME_B:
+ ret[0] = 'B';
+ break;
}
- fprintf (stderr, "Internal error: Unknown pitch %d\n", pitch);
- exit (1);
+ return ret;
}
-static void
-scherzo_analyze_chord (scherzo_t *scherzo)
+typedef struct chord_signature
{
- void *local = talloc_new (NULL);
- analyzed_note_t *notes;
- note_group_t *note_group;
- unsigned i, j, num_notes;
- int bass_pitch, inversion;
- score_pitch_t root;
- const char *chord_name = NULL;
-
- if (scherzo->pedal_pressed)
- note_group = &scherzo->notes_pedaled;
- else
- note_group = &scherzo->notes_pressed;
-
- num_notes = note_group->num_notes;
-
- struct { modified_degree_t degrees[1]; const char *name; } octaves[] = {
- { {{1, 0}}, " Octave"}
- };
-
- struct { modified_degree_t degrees[2]; const char *name; } intervals[] = {
- { {{1, 0}, {2, -1}}, " Minor 2nd"},
- { {{1, 0}, {2, 0}}, " Major 2nd"},
- { {{1, 0}, {3, -1}}, " Minor 3rd"},
- { {{1, 0}, {3, 0}}, " Major 3rd"},
- { {{1, 0}, {4, 0}}, " Perfect 4th"},
- { {{1, 0}, {5, -1}}, " Diminished 5th"},
- { {{1, 0}, {5, 0}}, " Perfect 5th"},
- { {{1, 0}, {6, -1}}, " Minor 6th"},
- { {{1, 0}, {6, 0}}, " Major 6th"},
- { {{1, 0}, {7, -1}}, " Minor 7th"},
- { {{1, 0}, {7, 0}}, " Major 7th"}
- };
+ int num_degrees;
+ modified_degree_t degrees[MAX_DEGREES];
+ const char *name;
+} chord_signature_t;
/* XXX: The superscript rise value should be relative to the current
* font size. Best would be for pango to support this. See:
#define SUP "<span font='33' rise='30000'>"
#define PUS "</span>"
- struct { modified_degree_t degrees[3]; const char *name; } 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" }
- };
-
- struct { modified_degree_t degrees[4]; const char *name; } tetrachords[] = {
- /* Sixth chords */
- { {{1, 0}, {3, +1}, {5, 0}, {6, 0}}, "sus" SUP "6" PUS },
- { {{1, 0}, {3, 0}, {5, 0}, {6, 0}}, "6" },
- { {{1, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6" },
- { {{1, 0}, {2, 0}, {5, 0}, {6, 0}}, "msus2" SUP "6" PUS },
- /* Seventh chords */
- { {{1, 0}, {3, +1}, {5, 0}, {7, 0}}, "sus" SUP "M7" PUS },
- { {{1, 0}, {3, +1}, {5, 0}, {7, -1}}, "sus" SUP "7" PUS },
- { {{1, 0}, {3, +1}, {5, -1}, {7, -1}}, "sus" SUP "7♭5" PUS },
- { {{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 },
- { {{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 }
- };
+chord_signature_t signatures[] = {
+ /* Octave */
+ { 1, {{1, 0}}, "P8" },
+
+ /* Intervals */
+ { 2, {{1, 0}, {2, -1}}, "m2" },
+ { 2, {{1, 0}, {2, 0}}, "M2" },
+ { 2, {{1, 0}, {3, -1}}, "m3" },
+ { 2, {{1, 0}, {3, 0}}, "M3" },
+ { 2, {{1, 0}, {4, 0}}, "P4" },
+ { 2, {{1, 0}, {5, -1}}, "Tri-tone" },
+ { 2, {{1, 0}, {5, 0}}, "P5" },
+ { 2, {{1, 0}, {6, -1}}, "m6" },
+ { 2, {{1, 0}, {6, 0}}, "M6" },
+ { 2, {{1, 0}, {7, -1}}, "m7" },
+ { 2, {{1, 0}, {7, 0}}, "M7" },
+
+ /* Triads */
+ { 3, {{1, 0}, {4, 0}, {5, 0}}, "sus" },
+ { 3, {{1, 0}, {3, 0}, {5, +1}}, SUP "+" PUS },
+ { 3, {{1, 0}, {3, 0}, {5, 0}}, "" },
+ { 3, {{1, 0}, {3, -1}, {5, 0}}, "m" },
+ { 3, {{1, 0}, {3, -1}, {5, -1}}, "°" },
+ { 3, {{1, 0}, {2, 0}, {5, 0}}, "msus2" },
+
+ /* Seventh chords with no 3rd */
+ { 3, {{1, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS },
+ { 3, {{1, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS },
+ { 3, {{1, 0}, {5, 0}, {7, 0}}, "M7" },
+ { 3, {{1, 0}, {5, 0}, {7, -1}}, "7" },
+ { 3, {{1, 0}, {5, -1}, {7, -1}}, "7♭5" },
+
+ /* Seventh chords with no 5th */
+ { 3, {{1, 0}, {4, 0}, {7, 0}}, "M7sus" },
+ { 3, {{1, 0}, {4, 0}, {7, -1}}, "7sus" },
+ { 3, {{1, 0}, {3, 0}, {7, 0}}, "M7" },
+ { 3, {{1, 0}, {3, 0}, {7, -1}}, "7" },
+ { 3, {{1, 0}, {3, -1}, {7, 0}}, "m" SUP "M7" PUS },
+ { 3, {{1, 0}, {3, -1}, {7, -1}}, "m7" },
+ { 3, {{1, 0}, {2, 0}, {7, 0}}, "m" SUP "M7" PUS "sus2" },
+ { 3, {{1, 0}, {2, 0}, {7, -1}}, "m7sus2" },
+
+ /* Sixth chords */
+ { 4, {{1, 0}, {4, 0}, {5, 0}, {6, 0}}, "6sus" },
+ { 4, {{1, 0}, {3, 0}, {5, 0}, {6, 0}}, "6" }, /* Ambiguous with m7 */
+ { 4, {{1, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6" },
+ { 4, {{1, 0}, {2, 0}, {5, 0}, {6, 0}}, "m6sus2" },
+
+ /* Seventh chords */
+ { 4, {{1, 0}, {4, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS "sus" },
+ { 4, {{1, 0}, {4, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS "sus" },
+ { 4, {{1, 0}, {4, 0}, {5, 0}, {7, 0}}, "M7sus" },
+ { 4, {{1, 0}, {4, 0}, {5, 0}, {7, -1}}, "7sus" },
+ { 4, {{1, 0}, {4, 0}, {5, -1}, {7, -1}}, "7♭5sus" },
+ { 4, {{1, 0}, {3, 0}, {5, +1}, {7, 0}}, SUP "+M7" PUS },
+ { 4, {{1, 0}, {3, 0}, {5, +1}, {7, -1}}, SUP "+7" PUS },
+ { 4, {{1, 0}, {3, 0}, {5, 0}, {7, 0}}, "M7" },
+ { 4, {{1, 0}, {3, 0}, {5, 0}, {7, -1}}, "7" },
+ { 4, {{1, 0}, {3, 0}, {5, -1}, {7, -1}}, "7♭5" },
+ { 4, {{1, 0}, {3, -1}, {5, 0}, {7, 0}}, "m" SUP "M7" PUS },
+ { 4, {{1, 0}, {3, -1}, {5, 0}, {7, -1}}, "m7" },
+ { 4, {{1, 0}, {3, -1}, {5, -1}, {7, 0}}, "°" SUP "M7" PUS },
+ { 4, {{1, 0}, {3, -1}, {5, -1}, {7, -1}}, "𝆩" SUP "7" PUS },
+ { 4, {{1, 0}, {3, -1}, {5, -1}, {7, -2}}, "°" SUP "7" PUS },
+ { 4, {{1, 0}, {2, 0}, {5, 0}, {7, 0}}, "m" SUP "M7" PUS "sus2" },
+ { 4, {{1, 0}, {2, 0}, {5, 0}, {7, -1}}, "m7sus2" },
+ { 4, {{1, 0}, {2, 0}, {5, -1}, {7, 0}}, "°" SUP "M7" PUS "sus2" },
+ { 4, {{1, 0}, {2, 0}, {5, -1}, {7, -1}}, "𝆩" SUP "7" PUS "sus2" },
+ { 4, {{1, 0}, {2, 0}, {5, -1}, {7, -2}}, "°" SUP "7" PUS "sus2" }, /* Ambiguous with 7 */
+
+ /* The sorting for chords with degree higher than 9 is funny
+ * to keep the array in degree order after reducing each
+ * degree to an actual scale degree, (9 -> 2, 11 -> 4, 13 ->
+ * 6) */
+
+ /* Ninth chords voiced with no 5th */
+ { 4, {{1, 0}, {9, 0}, {4, 0}, {7, 0}}, "M9sus" },
+ { 4, {{1, 0}, {9, 0}, {4, 0}, {7, -1}}, "9sus" },
+ { 4, {{1, 0}, {9, 0}, {3, 0}, {7, 0}}, "M9" },
+ { 4, {{1, 0}, {9, 0}, {3, 0}, {7, -1}}, "9" },
+ { 4, {{1, 0}, {9, 0}, {3, -1}, {7, 0}}, "m" SUP "M9" PUS },
+ { 4, {{1, 0}, {9, 0}, {3, -1}, {7, -1}}, "m9" },
+ { 4, {{1, 0}, {9, -1}, {3, -1}, {7, -1}}, "m♭9" },
+ { 4, {{1, 0}, {9, 0}, {3, -1}, {6, 0}}, "m6/9" },
+ { 4, {{1, 0}, {9, -1}, {3, -1}, {6, 0}}, "m6/♭9" },
+
+ /* Sixth plus 9 */
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, 0}, {6, 0}}, "6/9" },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, 0}, {6, 0}}, "m6/9" },
+ { 5, {{1, 0}, {9, -1}, {3, -1}, {5, 0}, {6, 0}}, "m6/♭9" },
+
+ /* Seventh plus altered 9 */
+ { 5, {{1, 0}, {9, +1}, {3, 0}, {5, 0}, {7, -1}}, "7♯9" },
+ { 5, {{1, 0}, {9, -1}, {3, 0}, {5, 0}, {7, -1}}, "7♭9" },
+ { 5, {{1, 0}, {9, +1}, {3, 0}, {5, -1}, {7, -1}}, "7♭5♯9" },
+ { 5, {{1, 0}, {9, -1}, {3, 0}, {5, -1}, {7, -1}}, "7♭5♭9" },
+
+ /* Ninth chords */
+ { 5, {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, 0}}, SUP "+M9" PUS "sus" },
+ { 5, {{1, 0}, {9, 0}, {4, 0}, {5, +1}, {7, -1}}, SUP "+9" PUS "sus" },
+ { 5, {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, 0}}, "M9sus" },
+ { 5, {{1, 0}, {9, 0}, {4, 0}, {5, 0}, {7, -1}}, "9sus" },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, +1}, {7, 0}}, SUP "+M9" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, +1}, {7, -1}}, SUP "+9" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, 0}, {7, 0}}, "M9" },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, 0}, {7, -1}}, "9" },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, 0}, {7, 0}}, "m" SUP "M9" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, 0}, {7, -1}}, "m9" },
+ { 5, {{1, 0}, {9, -1}, {3, -1}, {5, 0}, {7, -1}}, "m♭9" },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, -1}, {7, 0}}, "M9" SUP "♭5" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, 0}, {5, -1}, {7, -1}}, "9" SUP "♭5" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, -1}, {7, 0}}, "m" SUP "M9♭5" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, -1}, {7, -1}}, "𝆩" SUP "9" PUS },
+ { 5, {{1, 0}, {9, -1}, {3, -1}, {5, -1}, {7, -1}}, "𝆩" SUP "♭9" PUS },
+ { 5, {{1, 0}, {9, 0}, {3, -1}, {5, -1}, {7, -2}}, "°" SUP "9" PUS },
+ { 5, {{1, 0}, {9, -1}, {3, -1}, {5, -1}, {7, -2}}, "°" SUP "♭9" PUS },
+
+ /* Eleventh chords */
+ { 6, {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, +1}, {7, 0}}, SUP "+M11" PUS },
+ { 6, {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, +1}, {7, -1}}, SUP "+11" PUS },
+ { 6, {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, 0}, {7, 0}}, "M11" },
+ { 6, {{1, 0}, {9, 0}, {3, 0}, {11, 0}, {5, 0}, {7, -1}}, "11" },
+ { 6, {{1, 0}, {9, 0}, {3, -1}, {11, 0}, {5, 0}, {7, 0}}, "m" SUP "M11" PUS },
+ { 6, {{1, 0}, {9, 0}, {3, -1}, {11, 0}, {5, 0}, {7, -1}}, "m11" },
+ { 6, {{1, 0}, {9, -1}, {3, -1}, {11, 0}, {5, -1}, {7, -1}}, "𝆩" SUP "11" PUS },
+ { 6, {{1, 0}, {9, -1}, {3, -1}, {11, -1}, {5, -1}, {7, -2}}, "°" SUP "11" PUS }
+};
+
+static void
+scherzo_adjust_note_to_match_modified_degree (score_note_t *note,
+ pitch_t root,
+ modified_degree_t *degree)
+{
+ pitch_name_t name = PITCH_NAME (note->pitch);
+ pitch_accidental_t accidental = PITCH_ACCIDENTAL (note->pitch);
+ int degree_zero_based = (degree->degree - 1) % 7;
+ int degree_delta;
+
+ int note_degree_zero_based = name - PITCH_NAME (root);
+ if (note_degree_zero_based < 0)
+ note_degree_zero_based += 7;
+
+ if (note_degree_zero_based == degree_zero_based)
+ return;
+
+ degree_delta = note_degree_zero_based - degree_zero_based;
+ if (degree_delta > 3)
+ degree_delta = - (7 - degree_delta);
+ if (degree_delta < -3)
+ degree_delta = - (-7 - degree_delta);
+
+ if (abs (degree_delta) != 1) {
+ fprintf (stderr, "Internal error: Cannot adjust a note more than one degree (%d vs. %d).\n", note_degree_zero_based + 1, degree->degree);
+ exit (1);
+ }
+
+ if (degree_delta == -1) {
+ if (name == PITCH_NAME_B) {
+ name = PITCH_NAME_C;
+ note->octave++;
+ } else {
+ name++;
+ }
+ switch (name) {
+ case PITCH_NAME_D:
+ case PITCH_NAME_E:
+ case PITCH_NAME_G:
+ case PITCH_NAME_A:
+ case PITCH_NAME_B:
+ accidental -= 2;
+ break;
+ case PITCH_NAME_C:
+ case PITCH_NAME_F:
+ accidental -= 1;
+ break;
+ }
+ }
+
+ if (degree_delta == +1) {
+ if (name == PITCH_NAME_C) {
+ name = PITCH_NAME_B;
+ note->octave--;
+ } else {
+ name--;
+ }
+ switch (name) {
+ case PITCH_NAME_C:
+ case PITCH_NAME_D:
+ case PITCH_NAME_F:
+ case PITCH_NAME_G:
+ case PITCH_NAME_A:
+ accidental += 2;
+ break;
+ case PITCH_NAME_E:
+ case PITCH_NAME_B:
+ accidental += 1;
+ }
+ }
+
+ if (accidental < 0 || accidental > PITCH_ACCIDENTAL_DOUBLE_SHARP) {
+ fprintf (stderr, "Internal error: Trying to adjust an accidental out of range (degree_delta == %d (%d - %d), new accidental == %d).\n", degree_delta, note_degree_zero_based, degree_zero_based, accidental);
+ exit (1);
+ }
+
+ note->pitch = PITCH (name, accidental);
+}
+
+static void
+_spell_chord_by_signature (note_group_t *chord,
+ int num_notes,
+ chord_signature_t *signature,
+ pitch_t root)
+{
+ int i, degree, note_half_steps, degree_half_steps;
+ int root_midi;
+
+ /* Sanitize root to eliminate things like double-flats,
+ * double-sharps, Cb, E#, etc. */
+ root_midi = _pitch_and_octave_to_midi (root, 0);
+ _midi_to_pitch_and_octave (root_midi, &root, NULL);
+
+ for (i = 0; i < num_notes; i++) {
+ note_half_steps = _pitch_from_root_in_half_steps (chord->notes[i]->pitch,
+ root);
+ for (degree = 0; degree < signature->num_degrees; degree++) {
+ degree_half_steps = _modified_degree_to_half_steps (&signature->degrees[degree]);
+ if (note_half_steps == degree_half_steps) {
+ scherzo_adjust_note_to_match_modified_degree (chord->notes[i],
+ root,
+ &signature->degrees[degree]);
+ break;
+ }
+ }
+ if (note_half_steps != degree_half_steps) {
+ fprintf (stderr, "Internal error: Chord and degree mis-match\n");
+ exit (1);
+ }
+ }
+}
+
+static void
+scherzo_analyze_chord (scherzo_t *scherzo)
+{
+ void *local = talloc_new (NULL);
+ analyzed_note_t *notes;
+ note_group_t *note_group;
+ unsigned i, j, num_notes;
+ int bass_pitch, inversion;
+ pitch_t root;
+ chord_signature_t *match = NULL;
+ char *chord_name;
+
+ if (scherzo->pedal_pressed)
+ note_group = &scherzo->notes_pedaled;
+ else
+ note_group = &scherzo->notes_pressed;
+
+ num_notes = note_group->num_notes;
if (scherzo->chord) {
score_remove_chord (scherzo->chord);
for (i = 0; i < num_notes; i++) {
score_note_t *note = note_group->notes[i];
notes[i].note = note;
- notes[i].midi_pitch = _score_pitch_and_octave_to_midi (note->pitch,
+ notes[i].midi_pitch = _pitch_and_octave_to_midi (note->pitch,
note->octave);
/* Relative pitch will be filled in after sorting. */
notes[i].relative_pitch = 0;
}
for (inversion = 0; inversion < 4; inversion++) {
- switch (num_notes) {
- case 1:
- for (i = 0; i < ARRAY_SIZE (octaves); i++) {
- if (_chord_signature_matches (notes, num_notes,
- octaves[i].degrees, 1,
- inversion, &root))
- {
- chord_name = octaves[i].name;
- goto CHORD_NAME_KNOWN;
- }
- }
- break;
- case 2:
- for (i = 0; i < ARRAY_SIZE (intervals); i++) {
- if (_chord_signature_matches (notes, num_notes,
- intervals[i].degrees, 2,
- inversion, &root))
- {
- chord_name = intervals[i].name;
- goto CHORD_NAME_KNOWN;
- }
+ for (i = 0; i < ARRAY_SIZE (signatures); i++) {
+ if (_chord_signature_matches (notes, num_notes,
+ signatures[i].degrees,
+ signatures[i].num_degrees,
+ inversion, &root))
+ {
+ match = &signatures[i];
+ goto HAVE_MATCH;
}
- break;
- case 3:
- for (i = 0; i < ARRAY_SIZE (triads); i++) {
- if (_chord_signature_matches (notes, num_notes,
- triads[i].degrees, 3,
- inversion, &root))
- {
- chord_name = triads[i].name;
- goto CHORD_NAME_KNOWN;
- }
- }
- break;
- case 4:
- for (i = 0; i < ARRAY_SIZE(tetrachords); i++) {
- if (_chord_signature_matches (notes, num_notes,
- tetrachords[i].degrees, 4,
- inversion, &root))
- {
- chord_name = tetrachords[i].name;
- goto CHORD_NAME_KNOWN;
- }
- }
- break;
}
}
- CHORD_NAME_KNOWN:
-
- if (chord_name) {
- if (inversion) {
- const char *inversion_str;
- switch (inversion) {
- case 1:
- inversion_str = "1st inversion";
- break;
- case 2:
- inversion_str = "2nd inversion";
- break;
- case 3:
- inversion_str = "3rd inversion";
- break;
- default:
- fprintf (stderr, "Internal error: Unexpected inversion: %d\n",
- inversion);
- exit(1);
- }
- chord_name = talloc_asprintf (local, "%s%s %s",
- _pitch_str (root),
- chord_name, inversion_str);
+HAVE_MATCH:
+
+ chord_name = (char *) signatures[i].name;
+
+ if (match) {
+ /* Don't print root pitch for octaves and inversions,
+ * (since a pitch name alone looks like a major triad) */
+ if (num_notes < 3) {
+ chord_name = talloc_strdup (local, chord_name);
} else {
chord_name = talloc_asprintf (local, "%s%s",
_pitch_str (root),
chord_name);
}
+
+ _spell_chord_by_signature (note_group, num_notes,
+ match, root);
} else {
- chord_name = talloc_strdup (local, "Unknown chord");
+ chord_name = talloc_strdup (local, "?");
}
scherzo->chord = score_add_chord (scherzo->treble, chord_name);
}
static score_note_t *
-scherzo_press_note (scherzo_t *scherzo, score_pitch_t pitch, int octave)
+scherzo_press_note (scherzo_t *scherzo, pitch_t pitch, int octave)
{
score_staff_t *staff;
score_note_t *note;
}
static void
-scherzo_release_note (scherzo_t *scherzo, score_pitch_t pitch, int octave)
+scherzo_release_note (scherzo_t *scherzo, pitch_t pitch, int octave)
{
score_note_t *note;
int i;
int found = 0;
+ int target_midi = _pitch_and_octave_to_midi (pitch, octave);
+ int note_midi;
for (i = scherzo->notes_pressed.num_notes - 1; i >=0; i--) {
note = scherzo->notes_pressed.notes[i];
- if (note->pitch == pitch && note->octave == octave) {
+ note_midi = _pitch_and_octave_to_midi (note->pitch, note->octave);
+ if (note_midi == target_midi) {
found = 1;
if (! scherzo->pedal_pressed)
score_remove_note (note);
static score_note_t *
scherzo_press_note_midi (scherzo_t *scherzo, unsigned char midi_note)
{
- score_pitch_t pitch;
+ pitch_t pitch;
int octave;
- _midi_to_score_pitch_and_octave (midi_note, &pitch, &octave);
+ _midi_to_pitch_and_octave (midi_note, &pitch, &octave);
return scherzo_press_note (scherzo, pitch, octave);
}
static void
scherzo_release_note_midi (scherzo_t *scherzo, unsigned char midi_note)
{
- score_pitch_t pitch;
+ pitch_t pitch;
int octave;
- _midi_to_score_pitch_and_octave (midi_note, &pitch, &octave);
+ _midi_to_pitch_and_octave (midi_note, &pitch, &octave);
scherzo_release_note (scherzo, pitch, octave);
}
bool_t introduced_unused;
item_t *item;
challenge_t *challenge = &scherzo->challenge;
- score_pitch_t pitch;
+ pitch_t pitch;
int octave;
char *s;
switch (*s) {
case 'C':
- pitch = SCORE_PITCH_C;
+ pitch = PITCH_NATURAL (C);
break;
case 'D':
- pitch = SCORE_PITCH_D;
+ pitch = PITCH_NATURAL (D);
break;
case 'E':
- pitch = SCORE_PITCH_E;
+ pitch = PITCH_NATURAL (E);
break;
case 'F':
- pitch = SCORE_PITCH_F;
+ pitch = PITCH_NATURAL (F);
break;
case 'G':
- pitch = SCORE_PITCH_G;
+ pitch = PITCH_NATURAL (G);
break;
case 'A':
- pitch = SCORE_PITCH_A;
+ pitch = PITCH_NATURAL (A);
break;
case 'B':
- pitch = SCORE_PITCH_B;
+ pitch = PITCH_NATURAL (B);
break;
default:
fprintf (stderr, "Malformed pitch name: %s (expected 'A' - 'G')\n", s);
/* Default to octave 4 and natural for computer keyboard keypresses. */
scherzo.keyboard_octave = 4;
- scherzo.keyboard_accidental = SCORE_PITCH_ACCIDENTAL_NATURAL;
+ scherzo.keyboard_accidental = PITCH_ACCIDENTAL_NATURAL;
note_group_init (scherzo.ctx, &scherzo.notes_pressed);
note_group_init (scherzo.ctx, &scherzo.notes_pedaled);
projects / scherzo / blobdiff