+sub delete_artist { shift->{audiofile}->delete_artist(); }
+sub delete_album { shift->{audiofile}->delete_album(); }
+sub delete_track { shift->{audiofile}->delete_track(); }
+sub delete_tracknum { shift->{audiofile}->delete_tracknum(); }
+sub delete_year { shift->{audiofile}->delete_year(); }
+sub delete_v1genre { shift->{audiofile}->delete_v1genre(); }
+sub delete_comment { shift->{audiofile}->delete_comment(); }
+sub delete_all { shift->{audiofile}->delete_all(); }
+sub delete_genre { shift->{audiofile}->delete_genre(); }
+sub delete_tags { shift->{audiofile}->delete_tags(@_); }
+sub channels { shift->{audiofile}->channels(); }
+sub bitrate { shift->{audiofile}->bitrate(); }
+sub samplerate { shift->{audiofile}->samplerate(@_); }