[begin_pg song_trainer_pg_
[pg_norm song_trainer_pg_
[end_pg song_trainer_pg_
[begin_pb song_trainer_pb_
[pb_norm song_trainer_pb_
[end_pb song_trainer_pb_
[begin_key song_trainer_key_
[key_norm song_trainer_key_
[end_key song_trainer_key_
[chrd3 
[chrd2 
[chrd1 