======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '187'
                                          'artist'  'Darkest Hour'
                                     'text_people'  'Darkest Hour'
                                         'release'  'The Mark of the Judas'
                                           'title'  'A Blessing in Tragedy'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '109'
                                             'key'  '6A'
                                        '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))                     '109'
'TCOM' (Composer)                                   'Darkest Hour'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'A Blessing in Tragedy'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '187010'
'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)               '2'
'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'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.11 dB'
'TXXX:replaygain_track_peak'                        '0.466770'

========================== row from database ==========================
                                              'id'  1331853
                                            'path'  /data/Music/Bulk/00poprockelectronic/Darkest Hour/The Mark of the Judas/Darkest Hour-The Mark of the Judas-A Blessing in Tragedy.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  187
                                           'genre'  eid-metal-death
                                        'filesize'  4500860
                                           'mtime'  1620302144
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid metal death
                                      'tag_artist'  Darkest Hour
                                     'tag_release'  The Mark of the Judas
                                       'tag_title'  A Blessing in Tragedy
                                             'bpm'  109.0
                                    'search_title'  'a':1 'blessing':2 'in':3 'tragedy':4
                                   '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 'a':1A 'blessing':2A 'darkest':5B 'death':14 'eid':12 'hour':6B 'in':3A 'judas':10C 'mark':8C 'metal':13 'of':9C 'the':7C 'tragedy':4A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302144.3494868  (2021-05-06 13:55:44)
                             'size'  4500860