<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '187.891'
                                        'duration'  '394'
                                          'artist'  'Melechesh'
                                     'text_people'  ''
                                         'release'  'Emissaries'
                                           'title'  'The Scribes of Kur'
                                           '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-4', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['thrash metal', 'folk metal', 'black metal', 'death metal', 'mesopotamian "
 "metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '118.984'
                                             'key'  '5A'
                                        'acoustid'  'a7d81044-37b9-4c5b-b0ae-08cfbb3f48bf'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382daa60>

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'PRIV:WM/WMCollectionID:\x04|á¹Ô\x08±I\x96yâ\x7f*\x1f£9'  PRIV(owner='WM/WMCollectionID', data=b'\x04|\xe1\xb9\xd4\x08\xb1I\x96y\xe2\x7f*\x1f\xa39')
'PRIV:WM/WMContentID:\x7fXWãÜxÅ@¾Æ+L\x1dÚ§)'        PRIV(owner='WM/WMContentID', data=b'\x7fXW\xe3\xdcx\xc5@\xbe\xc6+L\x1d\xda\xa7)')
'TALB' (Album/Movie/Show title)                     'Emissaries'
'TBPM' (BPM (beats per minute))                     '118.984'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-10-30'
'TIT2' (Title/songname/content description)         'The Scribes of Kur'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Melechesh'
'TPE2' (Band/orchestra/accompaniment)               'Melechesh'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Osmose Productions'
'TRCK' (Track number/Position in set)               '7/11'
'TSO2'                                              'Melechesh'
'TSOP' (Performer sort order)                       'Melechesh'
'TXXX:ASIN'                                         'B000IHYU0Q'
'TXXX:Acoustid Id'                                  'a7d81044-37b9-4c5b-b0ae-08cfbb3f48bf'
'TXXX:BARCODE'                                      '4260037847610'
'TXXX:CATALOGNUMBER'                                'OPCDL 179'
'TXXX:MusicBrainz Album Artist Id'                  'bfd84c48-8659-4837-88b0-760eda171e5d'
'TXXX:MusicBrainz Album Id'                         '5d1fb9fd-61a4-407a-bc23-d5a8b6b9bba9'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'bfd84c48-8659-4837-88b0-760eda171e5d'
'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'                                   ['thrash metal',
 'folk metal',
 'black metal',
 'death metal',
 'mesopotamian metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.563585'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fcc5470f-af8e-4df0-95af-4d8d5ce64a4d')

========================== row from database ==========================
                                              'id'  1392638
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Melechesh - 2006 - Emissaries/07_melechesh_-_the_scribes_of_kur.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  394
                                           'genre'  eid-metal-black
                                        'filesize'  9277880
                                           'mtime'  1620301718
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 2006 07_melechesh_ _the_scribes_of_kur eid metal black
                                      'tag_artist'  Melechesh
                                     'tag_release'  Emissaries
                                       'tag_title'  The Scribes of Kur
                                             'bpm'  118.984
                                    'search_title'  'kur':4 'of':3 'scribes':2 'the':1
                                   'search_artist'  'melechesh':1
                                  'search_release'  'emissaries':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '07':4 '2006':3 'black':12 'eid':10 'kur':9 'melechesh':5 'metal':11 'of':8 'scribes':7 'the':6
                                    'search_combo'  '00dwimp':7 '00metal':8 '07':10 '2006':9 'black':18 'eid':16 'emissaries':6C 'kur':4A,15 'melechesh':5B,11 'metal':17 'of':3A,14 'scribes':2A,13 'the':1A,12
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['thrash metal', 'folk metal', 'black metal', 'death metal', 'mesopotamian metal']
                                        'tag_date'  2006
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301717.8730314  (2021-05-06 13:48:37)
                             'size'  9277880