Update app.py and hexachords.py

app.py

@@ -35,7 +35,7 @@ def create_midi(chords):
     mid = MidiFile()
     track = MidiTrack()
     mid.tracks.append(track)
-    delta_time = 480 * 2
+    delta_time = 480 * 4
     for i_chord, chord in enumerate(chords):
         for i, note in enumerate(chord):
             if i == 0 and i_chord != 0:

hexachords.py

@@ -6,9 +6,8 @@ class Hexachord:
     def generate_chord_sequence_from_midi_pitches(self, list_of_mp, intrvl="P5"):
         return self.generate_chord_sequence([note.Note(mp).nameWithOctave for mp in list_of_mp], intrvl=intrvl)
 
-    def generate_chord_sequence(self, list_of_notes, intrvl="P5"):
+    def generate_chord_sequence(self, hexachord, intrvl="P5"):
 
-        hexachord =  list_of_notes
         fifth = interval.Interval(intrvl)  # Perfect fifth
         all_pc = [n.pitch.pitchClass for n in hexachord]
         all_chords = []
@@ -18,8 +17,7 @@ class Hexachord:
             while len(ch) < 6:
                 current_note = fifth.transposeNote(current_note)
                 if current_note.pitch.pitchClass in all_pc and current_note not in ch:
-                    max_pitch = ch[-1].pitch
-                    while interval.Interval(noteStart=ch[-1], noteEnd=current_note).semitones > 12:
+                    while interval.Interval(noteStart=ch[-1], noteEnd=current_note).semitones > (12 + 7):
                         current_note = current_note.transpose(-12)
                     ch.add(current_note)
             all_chords.append(ch)
@@ -106,7 +104,9 @@ class Hexachord:
 
 if __name__ == '__main__':
     hexa = Hexachord()
-    cs1 = hexa.generate_chord_sequence(["C3", "D3", "E3", "G3", "A3", "B3"], intrvl="P4")
+    note_names = ["C3", "Eb3", "E3", "F#3", "G3", "Bb3"]
+    notes = [note.Note(n) for n in note_names]
+    cs1 = hexa.generate_chord_sequence(notes, intrvl="P4")
     # cs1 = generate_chord_sequence(["E3", "G3", "Ab3", "B3", "C4", "Eb4"])
     # cs2 = generate_chord_sequence(["C3", "F3", "F#3", "A3", "B4", "E4"])
     # alternation = alternate_chords(cs1, cs2)