def generate_pattern(progression_list, key = "C", pattern_index = 0, nb_bars=1): pattern = patterns.PATTERNS[pattern_index] t = Track() for progression in progression_list: progression = progression_to_int(progression) for p in progression : # permet d'avancer dans la progression des mesures previews_note = None p_key = get_progression_key(p, key) b = Bar(key, (4, 4)) position_note = 0 already_used=[] for pattern_note in pattern : if position_note not in already_used : is_chord = chord_length(pattern_note, pattern, position_note) if is_chord[2] : note_list = [] # c est un accord for p_note in pattern[is_chord[0]:is_chord[1]+1] : note_str = get_note_pattern(p_note, p_key) note = Note(note_str, p_note[5]) if previews_note is not None: if p_note[4]=='+': if int(note) < previews_note : note.octave_up() elif p_note[4]=='-': if int(note) > previews_note : note.octave_down() previews_note = int(note) note_list.append(note) for n in range(is_chord[0], is_chord[1]+1): already_used.append(n) b.place_notes(note_list, pattern_note[1]) else : note_str = get_note_pattern(pattern_note, p_key) note = Note(note_str, pattern_note[5]) if previews_note is not None: if pattern_note[4]=='+': if int(note) < previews_note : note.octave_up() elif pattern_note[4]=='-': if int(note) > previews_note : note.octave_down() previews_note = int(note) b.place_notes(note, pattern_note[1]) already_used.append(position_note) position_note+=1 t.add_bar(b) return t
def play_pattern(pattern_index, key): pattern = patterns.PATTERNS[pattern_index] fluidsynth.init("198_u20_Electric_Grand.SF2") # permet d'initialiser l'instrument previews_note = None b = Bar(key, (4, 4)) position_note = 0 already_used=[] for pattern_note in pattern : if position_note not in already_used : is_chord = chord_length(pattern_note, pattern, position_note) if is_chord[2] : note_list = [] # c est un accord for p_note in pattern[is_chord[0]:is_chord[1]+1] : note_str = get_note_pattern(p_note, key) note = Note(note_str, p_note[5]) if previews_note is not None: if p_note[4]=='+': if int(note) < previews_note : note.octave_up() elif p_note[4]=='-': if int(note) > previews_note : note.octave_down() previews_note = int(note) note_list.append(note) for n in range(is_chord[0], is_chord[1]+1): already_used.append(n) b.place_notes(note_list, pattern_note[1]) else : note_str = get_note_pattern(pattern_note, key) note = Note(note_str, pattern_note[5]) if previews_note is not None: if pattern_note[4]=='+': if int(note) < previews_note : note.octave_up() elif pattern_note[4]=='-': if int(note) > previews_note : note.octave_down() previews_note = int(note) b.place_notes(note, pattern_note[1]) already_used.append(position_note) position_note+=1 fluidsynth.play_Bar(b, 1, 60)
def generate_bar(previews_note, bar, key, mode, progression, progression_list, nb_p, pattern_index): if mode == 'mixolydien' : if progression == 'IV' : key = intervals.fourth(key, key) elif progression == 'V' : key = intervals.fifth(key, key) b = Bar(key, (4, 4)) position_note = 0 already_used=[] list_note = [] for bar_note in bar : if position_note not in already_used : is_chord = chord_length(bar_note, bar, position_note) if is_chord[2] : note_list = [] # c est un accord for p_note in bar[is_chord[0]:is_chord[1]+1] : note_str = get_note(p_note, key) note = Note(note_str, p_note[5]) if previews_note is not None: if p_note[4]=='+': if int(note) < previews_note : note.octave_up() elif p_note[4]=='-': if int(note) > previews_note : note.octave_down() current_progression = progression_list[0][nb_p] note = change_note_if_needed(bar_note[2], note, pattern_index, current_progression, bar_note, key) previews_note = int(note) #appeler best_note la aussi note_list.append(note) list_note.append(note) for n in range(is_chord[0], is_chord[1]+1): already_used.append(n) b.place_notes(note_list, bar_note[1]) else : note_str = get_note(bar_note, key) note = Note(note_str, bar_note[5]) if previews_note is not None: if bar_note[4]=='+': if int(note) < previews_note : note.octave_up() elif bar_note[4]=='-': if int(note) > previews_note : note.octave_down() # la un faut appeler le truc pour modifier la note current_progression = progression_list[0][nb_p] note = change_note_if_needed(bar_note[2], note, pattern_index, current_progression, bar_note, key) previews_note = int(note) list_note.append(note) b.place_notes(note, bar_note[1]) already_used.append(position_note) position_note+=1 return (b, previews_note, list_note)