======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '303'
                                          'artist'  'Yuki Kajiura'
                                     'text_people'  ''
                                         'release'  '.hack//SIGN Original Sound & S'
                                           'title'  'The World'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'japanese', 'anime', 'instrumental', 'j-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '129.979'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     '.hack//SIGN Original Sound & S'
'TBPM' (BPM (beats per minute))                     '129.979'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'The World'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yuki Kajiura'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'japanese', 'anime', 'instrumental', 'j-pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.401106'

========================== row from database ==========================
                                              'id'  257311
                                            'path'  /data/Music/Bulk/0soundtrack/Yuki Kajiura/MBZ;#Yuki Kajiura;#.hackSIGN Original Sound & Song Track 1;#02;#The World.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  303
                                           'genre'  soundtrack-video
                                        'filesize'  4855244
                                           'mtime'  1620334423
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack MBZ;#Yuki Kajiura;#.hackSIGN Song Track 1;#02;#The soundtrack video
                                      'tag_artist'  Yuki Kajiura
                                     'tag_release'  .hack//SIGN Original Sound & S
                                       'tag_title'  The World
                                             'bpm'  129.979
                                    'search_title'  'the':1 'world':2
                                   'search_artist'  'kajiura':2 'yuki':1
                                  'search_release'  'hack':1 'hacksign':3 'original':4 's':6 'sign':2 'sound':5
                                     'search_rest'  '02':13,16 '0soundtrack':1 '1':12,15 'hack':21,23 'hacksign':7,9 'kajiura':6,8,20,22 'mbz':2,4 'sign':24 'song':10 'soundtrack':18 'the':14,17 'track':11 'video':19 'yuki':3,5
                                    'search_combo'  '02':23,26 '0soundtrack':11 '1':22,25 'hack':5C,31,33 'hacksign':7C,17,19 'kajiura':4B,16,18,30,32 'mbz':12,14 'original':8C 's':10C 'sign':6C,34 'song':20 'sound':9C 'soundtrack':28 'the':1A,24,27 'track':21 'video':29 'world':2A 'yuki':3B,13,15
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'japanese', 'anime', 'instrumental', 'j-pop']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620334422.8857007  (2021-05-06 22:53:42)
                             'size'  4855244