======================== unified (from filesystem) ========================
                                         'bitrate'  '225.5'
                                        'duration'  '231'
                                          'artist'  'The Blood Brothers'
                                     'text_people'  ''
                                         'release'  'Crimes'
                                           'title'  'Rats and Rats and Rats for Candy'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-noise-screamo'
                                             'bpm'  '104.660'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Crimes'
'TBPM' (BPM (beats per minute))                     '104.660'
'TCON' (Content type, a.k.a. Genre)                 'eid-noise-screamo'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Rats and Rats and Rats for Candy'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Blood Brothers'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.386176'

========================== row from database ==========================
                                              'id'  1349311
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Blood Brothers/The Blood Brothers - Crimes - 06 - Rats and Rats and Rats for Candy.mp3
                                         'working'  None
                                         'bitrate'  225
                                    'duration_sec'  231
                                           'genre'  eid-noise-screamo
                                        'filesize'  6541063
                                           'mtime'  1620311555
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 eid noise screamo
                                      'tag_artist'  The Blood Brothers
                                     'tag_release'  Crimes
                                       'tag_title'  Rats and Rats and Rats for Candy
                                             'bpm'  104.66
                                    'search_title'  'and':2 'candy':4 'for':3 'rats':1
                                   'search_artist'  'blood':2 'brothers':3 'the':1
                                  'search_release'  'crimes':1
                                     'search_rest'  '00poprockelectronic':1 'eid':2 'noise':3 'screamo':4
                                    'search_combo'  '00poprockelectronic':9 'and':2A 'blood':6B 'brothers':7B 'candy':4A 'crimes':8C 'eid':10 'for':3A 'noise':11 'rats':1A 'screamo':12 'the':5B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['indie', 'post hardcore', 'hardcore', 'experimental', 'screamo']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311555.3465512  (2021-05-06 16:32:35)
                             'size'  6541063