Fields of tracks

These are the fields of track and a half filled in version of their corresponding tags

Type	Track Field	ID3v2 Tag	APF	XiphComment
string	title	TIT2
integer	rating	POPM
integer	artist_id	N/A
integer	album_id	N/A
date	date	TDRC
string	location	N/A
float	bitrate
text	lyrics	USLT
integer	track_id	TRCK
integer	disc _id	MCDI
string	format
integer	BPM	TBPM
integer	length	TLEN
string	composer	TCOM
integer	play_count	PCNT
integer	file_size