======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '272'
                                          'artist'  'Carpathian Forest'
                                     'text_people'  ''
                                         'release'  'Black Shining Leather'
                                           'title'  'Black Shining Leather'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['norwegian', 'true norwegian black metal', 'black metal', 'metal', "
 "'norwegian black metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '11'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '140.238'
                                             'key'  '8A'
                                        'acoustid'  '664a3efa-6cfd-41e4-bd7d-eb6bf0b097c9'
rest: ''

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

'PRIV:AverageLevel:Û\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xdb\x13\x00\x00')
'PRIV:PeakValue:Ô`\x00\x00'                         PRIV(owner='PeakValue', data=b'\xd4`\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Black Shining Leather'
'TBPM' (BPM (beats per minute))                     '140.238'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-08-28'
'TEXT' (Lyricist/Text writer)                       'Nattefrost'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Terje Refsnes'], ['producer', 'Nattefrost'], ['producer', 'J. Nordavind'], ['engineer', 'Terje Refsnes'], ['arranger', 'Nattefrost'], ['arranger', 'J. Nordavind'], ['strings', 'Nattefrost'], ['strings', 'J. Nordavind'], ['guest drums', 'Lazare'], ['vocal', 'Nattefrost'], ['background vocals vocal', 'J. Nordavind']])
'TIT2' (Title/songname/content description)         'Black Shining Leather'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpathian Forest'
'TPE2' (Band/orchestra/accompaniment)               'Carpathian Forest'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Avantgarde Music'
'TRCK' (Track number/Position in set)               '1/11'
'TSO2'                                              'Carpathian Forest'
'TSOP' (Performer sort order)                       'Carpathian Forest'
'TXXX:ASIN'                                         'B00000J7BW'
'TXXX:Acoustid Id'                                  '664a3efa-6cfd-41e4-bd7d-eb6bf0b097c9'
'TXXX:BARCODE'                                      '4015698834628'
'TXXX:CATALOGNUMBER'                                'AV031'
'TXXX:MusicBrainz Album Artist Id'                  '69fa5c49-12ec-4c86-a238-4e07cc6d1a7d'
'TXXX:MusicBrainz Album Id'                         '3f2e996b-e231-4165-bba0-64ee3b67cf60'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '69fa5c49-12ec-4c86-a238-4e07cc6d1a7d'
'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'                                   ['norwegian',
 'true norwegian black metal',
 'black metal',
 'metal',
 'norwegian black metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.449826'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9ce4d4ba-5776-4181-8e4c-76cd0aa7909a')

========================== row from database ==========================
                                              'id'  1391359
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Carpathian Forest/Black shining leather/01 - Black Shining Leather.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  272
                                           'genre'  eid-metal-black
                                        'filesize'  6538918
                                           'mtime'  1620301418
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal shining leather 01 eid metal black
                                      'tag_artist'  Carpathian Forest
                                     'tag_release'  Black Shining Leather
                                       'tag_title'  Black Shining Leather
                                             'bpm'  140.238
                                    'search_title'  'black':1 'leather':3 'shining':2
                                   'search_artist'  'carpathian':1 'forest':2
                                  'search_release'  'black':1 'leather':3 'shining':2
                                     'search_rest'  '00dwimp':1 '00metal':2 'black':7 'eid':5 'leather':4 'metal':6 'shining':3
                                    'search_combo'  '00dwimp':9 '00metal':10 'black':1A,6C,15 'carpathian':4B 'eid':13 'forest':5B 'leather':3A,8C,12 'metal':14 'shining':2A,7C,11
                                    'tag_tracknum'  1
                                      '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['norwegian', 'true norwegian black metal', 'black metal', 'metal', 'norwegian black metal']
                                        'tag_date'  1998
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301417.9213464  (2021-05-06 13:43:37)
                             'size'  6538918