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from .base import MelodyDatasetHandler
class Genre(MelodyDatasetHandler):
name = "genre"
def __init__(self, melody_type, *args, **kwargs):
import json
with open("data/genre/word_data_zh.json", "r", encoding="utf-8") as f:
song_db_zh = json.load(f)
song_db_zh = {f"zh_{song['id']}": song for song in song_db_zh} # id as major
with open("data/genre/word_data_en.json", "r", encoding="utf-8") as f:
song_db_en = json.load(f)
song_db_en = {f"en_{song['id']}": song for song in song_db_en} # id as major
self.song_db = {**song_db_zh, **song_db_en}
def get_song_ids(self):
return list(self.song_db.keys())
def get_style_keywords(self, song_id):
genre = self.song_db[song_id]["genre"]
super_genre = self.song_db[song_id]["super-genre"]
gender = self.song_db[song_id]["gender"]
return (genre, super_genre, gender)
def get_phrase_length(self, song_id):
# Return the number of lyrics (excluding SP/AP) in each phrase of the song
song = self.song_db[song_id]
note_lyrics = song.get("note_lyrics", [])
phrase_lengths = []
for phrase in note_lyrics:
count = sum(1 for word in phrase if word not in ("SP", "AP"))
phrase_lengths.append(count)
return phrase_lengths
def iter_song_phrases(self, song_id):
segment_id = 1
song = self.song_db[song_id]
for phrase_score, phrase_lyrics in zip(song["score"], song["note_lyrics"]):
segment = {
"note_start_times": [n[0] for n in phrase_score],
"note_end_times": [n[1] for n in phrase_score],
"note_lyrics": [character for character in phrase_lyrics],
"note_midi": [n[2] for n in phrase_score],
}
yield segment
segment_id += 1
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