======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '435'
                                          'artist'  'Darkest Hour'
                                     'text_people'  'Darkest Hour'
                                         'release'  'The Mark of the Judas'
                                           'title'  'How the Beautiful Decay'
                                           '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-2', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '112'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'The Mark of the Judas'
'TBPM' (BPM (beats per minute))                     '112'
'TCOM' (Composer)                                   'Darkest Hour'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'How the Beautiful Decay'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '435591'
'TPE1' (Lead performer(s)/Soloist(s))               'Darkest Hour'
'TPE2' (Band/orchestra/accompaniment)               'Darkest Hour'
'TPUB' (Publisher)                                  'Art Monk Construct'
'TRCK' (Track number/Position in set)               '9'
'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'                                   ['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.42 dB'
'TXXX:replaygain_track_peak'                        '0.470033'

========================== row from database ==========================
                                              'id'  1293041
                                            'path'  /data/Music/Bulk/00poprockelectronic/Darkest Hour/The Mark of the Judas/Darkest Hour-The Mark of the Judas-How the Beautiful Decay.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  435
                                           'genre'  eid-metal-death
                                        'filesize'  10466811
                                           'mtime'  1620302150
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid metal death
                                      'tag_artist'  Darkest Hour
                                     'tag_release'  The Mark of the Judas
                                       'tag_title'  How the Beautiful Decay
                                             'bpm'  112.0
                                    'search_title'  'beautiful':3 'decay':4 'how':1 'the':2
                                   'search_artist'  'darkest':1 'hour':2
                                  'search_release'  'judas':4 'mark':2 'of':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'death':4 'eid':2 'metal':3
                                    'search_combo'  '00poprockelectronic':11 'beautiful':3A 'darkest':5B 'death':14 'decay':4A 'eid':12 'hour':6B 'how':1A 'judas':10C 'mark':8C 'metal':13 'of':9C 'the':2A,7C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302149.6163986  (2021-05-06 13:55:49)
                             'size'  10466811