======================== unified (from filesystem) ========================
                                         'bitrate'  '183.768'
                                        'duration'  '711'
                                          'artist'  'Sólstafir'
                                     'text_people'  ''
                                         'release'  'Köld'
                                           'title'  'World Void of Souls'
                                           '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['icelandic', 'post black metal', 'black metal', 'progressive metal', "
 "'rock', 'post metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '8'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '143'
                                             'key'  '12A'
                                        'acoustid'  '6579d701-276c-493a-8bcb-00ca31aa1ff6'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x005\x004\x000\x001\x004\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x008\x004\x002\x006\x008\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x008\x005\x003\x007\x006\x009\x008\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x005\x004\x000\x001\x004\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x008\x004\x002\x006\x008\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x008\x005\x003\x007\x006\x009\x008\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x9f.\r\x18H¿]B¤v\x16æ¢å"!'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x9f.\r\x18H\xbf]B\xa4v\x16\xe6\xa2\xe5"!')
'PRIV:WM/WMCollectionID:\x9f.\r\x18H¿]B¤v\x16æ¢å"!'  PRIV(owner='WM/WMCollectionID', data=b'\x9f.\r\x18H\xbf]B\xa4v\x16\xe6\xa2\xe5"!')
'PRIV:WM/WMContentID:VÏ\x85$Sµ/E\xa0Ô±u\x90Ö\x95D'  PRIV(owner='WM/WMContentID', data=b'V\xcf\x85$S\xb5/E\xa0\xd4\xb1u\x90\xd6\x95D')
'PRIV:http://www.cdtag.com:\x02\x00·jb\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xb7jb\x00')
'TALB' (Album/Movie/Show title)                     'Köld'
'TBPM' (BPM (beats per minute))                     '143'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-01-21'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'World Void of Souls'
'TKEY' (Initial key)                                '12A'
'TLAN' (Language(s))                                'eng'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sólstafir'
'TPE2' (Band/orchestra/accompaniment)               'Sólstafir'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Spikefarm Records'
'TRCK' (Track number/Position in set)               '6/8'
'TSO2'                                              'Sólstafir'
'TSOP' (Performer sort order)                       'Sólstafir'
'TSRC' (ISRC (international standard recording code))  'FIUM70801871'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97'
'TXXX:ASIN'                                         'B001P5VT04'
'TXXX:Acoustid Id'                                  '6579d701-276c-493a-8bcb-00ca31aa1ff6'
'TXXX:Artists'                                      'Sólstafir'
'TXXX:BARCODE'                                      '0602517639812'
'TXXX:CATALOGNUMBER'                                '176398-1/NAULA 102'
'TXXX:MusicBrainz Album Artist Id'                  '5f976464-4a48-4c0e-aee4-bb70afaf7a8b'
'TXXX:MusicBrainz Album Id'                         '996bd661-e2db-4227-9839-4024e2efe8ed'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5f976464-4a48-4c0e-aee4-bb70afaf7a8b'
'TXXX:MusicBrainz Release Group Id'                 '6ffdd53d-c729-368c-a555-75e28de22eb3'
'TXXX:MusicBrainz Release Track Id'                 '45ef51fe-58fe-3d73-a6a6-24ce40f352b3'
'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:Release type'                                 'eleas'
'TXXX:Rip date'                                     'ip date'
'TXXX:Ripping tool'                                 'ipp'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:Source'                                       'ou'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['icelandic',
 'post black metal',
 'black metal',
 'progressive metal',
 'rock',
 'post metal']
'TXXX:originalyear'                                 '2009'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.391307'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'107a4aee-be5f-470f-a755-c50a2cf0fab7')

========================== row from database ==========================
                                              'id'  1390964
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Sólstafir/Sólstafir - Köld/06-World Void Of Souls.mp3
                                         'working'  None
                                         'bitrate'  183
                                    'duration_sec'  711
                                           'genre'  eid-metal-progressive
                                        'filesize'  16379923
                                           'mtime'  1620310889
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 06 Of eid metal progressive
                                      'tag_artist'  Sólstafir
                                     'tag_release'  Köld
                                       'tag_title'  World Void of Souls
                                             'bpm'  143.0
                                    'search_title'  'of':3 'souls':4 'void':2 'world':1
                                   'search_artist'  'solstafir':1,2
                                  'search_release'  'kold':1,2
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':4 'metal':5 'of':3 'progressive':6
                                    'search_combo'  '00dwimp':9 '00metal':10 'eid':12 'kold':7C,8C 'metal':13 'of':3A,11 'progressive':14 'solstafir':5B,6B 'souls':4A 'void':2A 'world':1A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['icelandic', 'post black metal', 'black metal', 'progressive metal', 'rock', 'post metal']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310888.7762206  (2021-05-06 16:21:28)
                             'size'  16379923