<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '208'
                                          'artist'  'Venom'
                                     'text_people'  ''
                                         'release'  'Welcome to Hell'
                                           'title'  'In Nomine Satanas (7" single)'
                                           '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-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['thrash metal', 'nwobhm', 'black metal', 'metal', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '22'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '113.199'
                                             'key'  '2A'
                                        'acoustid'  '0424f3d4-665f-43a3-a41d-5ee546efad9e'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1b80>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1395614"/>
'TALB' (Album/Movie/Show title)                     'Welcome to Hell'
'TBPM' (BPM (beats per minute))                     '113.199'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '1981'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'In Nomine Satanas (7" single)'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Venom'
'TPE2' (Band/orchestra/accompaniment)               'Venom'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sanctuary Records'
'TRCK' (Track number/Position in set)               '16/22'
'TSO2'                                              'Venom'
'TSOP' (Performer sort order)                       'Venom'
'TXXX:Acoustid Id'                                  '0424f3d4-665f-43a3-a41d-5ee546efad9e'
'TXXX:BARCODE'                                      '823107300329'
'TXXX:CATALOGNUMBER'                                '82310-73003-2'
'TXXX:MusicBrainz Album Artist Id'                  'd2ad8774-9173-4970-8427-06b04df201c1'
'TXXX:MusicBrainz Album Id'                         'f6ba1727-070b-4a14-b6b6-854fce06fa6f'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd2ad8774-9173-4970-8427-06b04df201c1'
'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:lastfmtags'                                   ['thrash metal', 'nwobhm', 'black metal', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.99 dB'
'TXXX:replaygain_track_peak'                        '0.687312'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5bcf2f62-ac54-4ad3-a8d8-51102e044514')

========================== row from database ==========================
                                              'id'  1395614
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Venom - Welcome To Hell/16 - In Nomine Satanas (7- single b).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  208
                                           'genre'  eid-metal-black
                                        'filesize'  5049140
                                           'mtime'  1620301814
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal To 16 b) eid metal black
                                      'tag_artist'  Venom
                                     'tag_release'  Welcome to Hell
                                       'tag_title'  In Nomine Satanas (7" single)
                                             'bpm'  113.199
                                    'search_title'  '7':4,5 'in':1 'nomine':2 'satanas':3 'single':6,7
                                   'search_artist'  'venom':1
                                  'search_release'  'hell':3 'to':2 'welcome':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'b':4,5 'black':8 'eid':6 'metal':7 'to':3
                                    'search_combo'  '00dwimp':12 '00metal':13 '7':4A,5A 'b':15,16 'black':19 'eid':17 'hell':11C 'in':1A 'metal':18 'nomine':2A 'satanas':3A 'single':6A,7A 'to':10C,14 'venom':8B 'welcome':9C
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  2A
                                           '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-3', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['thrash metal', 'nwobhm', 'black metal', 'metal', 'heavy metal']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301814.2055578  (2021-05-06 13:50:14)
                             'size'  5049140