======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '309'
                                          'artist'  'Sambomaster'
                                     'text_people'  ''
                                         'release'  "Boku to Kimi no Subete wo Rock 'n Roll to Yobe"
                                           'title'  'Sekai wa Sore wo Ai to Yobundaze (Album Version)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['j-rock', 'japanese', 'rock', 'j-pop', 'anime']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '18'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '141.611'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000013CD 00001342 00003565'
'COMM:iTunNORM:eng'                                 (' 000013CD 00001342 00003565 00003B86 00033467 00033467 00008000 00007AB9 '
 '0003D0D5 0003A980')
'TALB' (Album/Movie/Show title)                     "Boku to Kimi no Subete wo Rock 'n Roll to Yobe"
'TBPM' (BPM (beats per minute))                     '141.611'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Sekai wa Sore wo Ai to Yobundaze (Album Version)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sambomaster'
'TRCK' (Track number/Position in set)               '3/18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['j-rock', 'japanese', 'rock', 'j-pop', 'anime']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.51 dB'
'TXXX:replaygain_track_peak'                        '0.470133'

========================== row from database ==========================
                                              'id'  1533920
                                            'path'  /data/Music/Bulk/00localcharacter/Sambomaster/Boku to Kimi no Subete wo Rock _n Roll to Yobe/03 Sekai wa Sore wo Ai to Yobundaze (Album Version).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  309
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  7432064
                                           'mtime'  1638551000
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter _n 03 loc asia japan;loc asia japan jrock
                                      'tag_artist'  Sambomaster
                                     'tag_release'  Boku to Kimi no Subete wo Rock 'n Roll to Yobe
                                       'tag_title'  Sekai wa Sore wo Ai to Yobundaze (Album Version)
                                             'bpm'  141.611
                                    'search_title'  'ai':5 'album':8,9 'sekai':1 'sore':3 'to':6 'version':10,11 'wa':2 'wo':4 'yobundaze':7
                                   'search_artist'  'sambomaster':1
                                  'search_release'  'boku':1 'kimi':3 'n':8,9 'no':4 'rock':7 'roll':10 'subete':5 'to':2 'wo':6 'yobe':11
                                     'search_rest'  'asia':3 'japan':4,6,8 'jrock':9 'loc':2,5,7 'n':1
                                    'search_combo'  'ai':5A 'album':8A,9A 'asia':26 'boku':13C 'japan':27,29,31 'jrock':32 'kimi':15C 'loc':25,28,30 'n':20C,21C,24 'no':16C 'rock':19C 'roll':22C 'sambomaster':12B 'sekai':1A 'sore':3A 'subete':17C 'to':6A,14C 'version':10A,11A 'wa':2A 'wo':4A,18C 'yobe':23C 'yobundaze':7A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['j-rock', 'japanese', 'rock', 'j-pop', 'anime']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638550999.8913958  (2021-12-03 18:03:19)
                             'size'  7432064