======================== unified (from filesystem) ========================
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                                        'duration'  '168'
                                          'artist'  'Kataklysm'
                                     'text_people'  ''
                                         'release'  'Victims of This Fallen World'
                                           'title'  'Extreme to the Core'
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                                      'lastfmtags'  ("['metal', 'melodic death metal', 'death metal', 'brutal death metal', "
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                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '140'
                                             'key'  '5A'
                                        'acoustid'  '352f0d30-0e73-4f10-a639-812056b12ed1'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '140'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Extreme to the Core'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '168960'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kataklysm'
'TPE2' (Band/orchestra/accompaniment)               'Kataklysm'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hypnotic Records'
'TRCK' (Track number/Position in set)               '6/12'
'TSO2'                                              'Kataklysm'
'TSOP' (Performer sort order)                       'Kataklysm'
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'TXXX:Artists'                                      'Kataklysm'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metal',
 'melodic death metal',
 'death metal',
 'brutal death metal',
 'canadian']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.370086'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6682fede-299b-43a0-bea3-5c7f29c181a2')

========================== row from database ==========================
                                              'id'  1402279
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Kataklysm/victims of this fallen world (incomplete)/Kataklysm - Victims Of This Fallen World - 06 - Extreme To The Core.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  168
                                           'genre'  eid-metal-death
                                        'filesize'  4062342
                                           'mtime'  1620302054
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal victims this fallen world (incomplete) Of 06 To The eid metal death
                                      'tag_artist'  Kataklysm
                                     'tag_release'  Victims of This Fallen World
                                       'tag_title'  Extreme to the Core
                                             'bpm'  140.0
                                    'search_title'  'core':4 'extreme':1 'the':3 'to':2
                                   'search_artist'  'kataklysm':1
                                  'search_release'  'fallen':4 'of':2 'this':3 'victims':1 'world':5
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':14 'eid':12 'fallen':5 'incomplete':7,8 'metal':13 'of':9 'the':11 'this':4 'to':10 'victims':3 'world':6
                                    'search_combo'  '00dwimp':11 '00metal':12 'core':4A 'death':24 'eid':22 'extreme':1A 'fallen':9C,15 'incomplete':17,18 'kataklysm':5B 'metal':23 'of':7C,19 'the':3A,21 'this':8C,14 'to':2A,20 'victims':6C,13 'world':10C,16
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5A
                                           '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-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['metal', 'melodic death metal', 'death metal', 'brutal death metal', 'canadian']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302053.636783  (2021-05-06 13:54:13)
                             'size'  4062342