======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '225'
                                          'artist'  'LOW IQ 01'
                                     'text_people'  ''
                                         'release'  'PINK & BLACK'
                                           'title'  'THIRTEEN'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['japanese', 'punk', 'alternative', 'indie', 'emo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '116.120'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'PINK & BLACK'
'TBPM' (BPM (beats per minute))                     '116.120'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'THIRTEEN'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'LOW IQ 01'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['japanese', 'punk', 'alternative', 'indie', 'emo']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.409455'

========================== row from database ==========================
                                              'id'  1331345
                                            'path'  /data/Music/Bulk/00poprockelectronic/LOW IQ 01/PINK & BLACK__cifs6c19.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  225
                                           'genre'  rock-gr-punk
                                        'filesize'  3610235
                                           'mtime'  1636912529
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic BLACK__cifs6c19 rock gr punk
                                      'tag_artist'  LOW IQ 01
                                     'tag_release'  PINK & BLACK
                                       'tag_title'  THIRTEEN
                                             'bpm'  116.12
                                    'search_title'  'thirteen':1
                                   'search_artist'  'iq':2 'low':1
                                  'search_release'  'black':2 'pink':1
                                     'search_rest'  '00poprockelectronic':1 'black':2 'cifs6c19':3 'gr':5 'punk':6 'rock':4
                                    'search_combo'  '00poprockelectronic':6 'black':5C,7 'cifs6c19':8 'gr':10 'iq':3B 'low':2B 'pink':4C 'punk':11 'rock':9 'thirteen':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'punk', 'alternative', 'indie', 'emo']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912529.2955298  (2021-11-14 18:55:29)
                             'size'  3610235