======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'Dødheimsgard'
                                     'text_people'  ''
                                         'release'  'Monumental Possession'
                                           'title'  'The Crystal Specter'
                                           '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-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial metal', 'black metal', 'avant garde', 'experimental', 'avant "
 "garde metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '118.4'
                                             'key'  '8A'
                                        'acoustid'  '71ce36e0-7e14-47c9-bb86-3aa3e54bb919'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Monumental Possession'
'TBPM' (BPM (beats per minute))                     '118.4'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'The Crystal Specter'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Dødheimsgard'
'TPE2' (Band/orchestra/accompaniment)               'Dødheimsgard'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Malicious Records'
'TRCK' (Track number/Position in set)               '3/9'
'TSO2'                                              'Dødheimsgard'
'TSOP' (Performer sort order)                       'Dødheimsgard'
'TXXX:Acoustid Id'                                  '71ce36e0-7e14-47c9-bb86-3aa3e54bb919'
'TXXX:Artists'                                      'Dødheimsgard'
'TXXX:CATALOGNUMBER'                                'MR010'
'TXXX:MusicBrainz Album Artist Id'                  'fa6b8030-067f-4f80-8ba3-8585b9cb9cfd'
'TXXX:MusicBrainz Album Id'                         '444afce2-77cf-44be-9fdb-577e27683e5c'
'TXXX:MusicBrainz Album Release Country'            'NO'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'fa6b8030-067f-4f80-8ba3-8585b9cb9cfd'
'TXXX:MusicBrainz Release Group Id'                 'a2793448-eca4-386f-891c-3467207e3ad2'
'TXXX:MusicBrainz Release Track Id'                 '1b07ec6f-7b48-3fb2-8b3b-6b36e573b953'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['industrial metal',
 'black metal',
 'avant garde',
 'experimental',
 'avant garde metal']
'TXXX:originalyear'                                 '1996'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'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'                        '-0.74 dB'
'TXXX:replaygain_track_peak'                        '0.411263'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a8c6d4e6-1363-45f3-b645-0255055e86f7')

========================== row from database ==========================
                                              'id'  1395080
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Dødheimsgard – «Monumental Possession» {192}/3. The Crystal Specter.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  eid-metal-black
                                        'filesize'  5539885
                                           'mtime'  1620301658
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal – «Monumental Possession» {192} 3. eid metal black
                                      'tag_artist'  Dødheimsgard
                                     'tag_release'  Monumental Possession
                                       'tag_title'  The Crystal Specter
                                             'bpm'  118.4
                                    'search_title'  'crystal':2 'specter':3 'the':1
                                   'search_artist'  'dodheimsgard':2 'dødheimsgard':1
                                  'search_release'  'monumental':1 'possession':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '192':5 '3':6,7 'black':10 'eid':8 'metal':9 'monumental':3 'possession':4
                                    'search_combo'  '00dwimp':8 '00metal':9 '192':12 '3':13,14 'black':17 'crystal':2A 'dodheimsgard':5B 'dødheimsgard':4B 'eid':15 'metal':16 'monumental':6C,10 'possession':7C,11 'specter':3A 'the':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'black metal', 'avant garde', 'experimental', 'avant garde metal']
                                        'tag_date'  1996
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301658.4630184  (2021-05-06 13:47:38)
                             'size'  5539885