<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '338'
                                          'artist'  'Kreator'
                                     'text_people'  'Kreator/Mille Petrozza'
                                         'release'  'Enemy Of God'
                                           'title'  "When Death Takes It's Dominion"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-2', '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-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'thrash', 'thrash metal', 'metal', 'heavy metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-trash'
                                             'bpm'  '128.170'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d75be0>

'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x006\x005\x005\x008\x00+\x00B\x004\x00A\x002\x00+\x00F\x001\x00B\x009\x00+\x001\x003\x006\x00A\x00E\x00+\x001\x007\x007\x006\x00F\x00+\x001\x00C\x007\x007\x001\x00+\x002\x001\x00C\x007\x003\x00+\x002\x007\x00F\x00B\x00C\x00+\x002\x00B\x00A\x004\x00D\x00+\x003\x000\x00C\x008\x00D\x00+\x003\x005\x00B\x003\x00C\x00+\x003\x00D\x006\x002\x00C\x00\x00\x00')
'PRIV:AverageLevel:\x7f#\x00\x00'                   PRIV(owner='AverageLevel', data=b'\x7f#\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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')
'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 \x00 \x007\x002\x002\x001\x009\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x007\x000\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x004\x004\x004\x001\x005\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x002\x002\x001\x009\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x007\x000\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x004\x004\x004\x001\x005\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:b\x15Q´"î!@\x97~üpþ¨¬¯'  PRIV(owner='WM/WMCollectionGroupID', data=b'b\x15Q\xb4"\xee!@\x97~\xfcp\xfe\xa8\xac\xaf')
'PRIV:WM/WMCollectionID:b\x15Q´"î!@\x97~üpþ¨¬¯'     PRIV(owner='WM/WMCollectionID', data=b'b\x15Q\xb4"\xee!@\x97~\xfcp\xfe\xa8\xac\xaf')
"PRIV:WM/WMContentID:'×øîÊ\x80\x02G\x89Ç\x1bx¥\x95\rÒ"  PRIV(owner='WM/WMContentID', data=b"'\xd7\xf8\xee\xca\x80\x02G\x89\xc7\x1bx\xa5\x95\r\xd2")
'TALB' (Album/Movie/Show title)                     'Enemy Of God'
'TBPM' (BPM (beats per minute))                     '128.170'
'TCOM' (Composer)                                   'Kreator/Mille Petrozza'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-trash'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "When Death Takes It's Dominion"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '338893'
'TPE1' (Lead performer(s)/Soloist(s))               'Kreator'
'TPE2' (Band/orchestra/accompaniment)               'Kreator'
'TPUB' (Publisher)                                  'Steamhammer/SPV'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['german', 'thrash', 'thrash metal', 'metal', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.07 dB'
'TXXX:replaygain_track_peak'                        '0.488289'

========================== row from database ==========================
                                              'id'  1512053
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Kreator/Enemy of god [2005]/08 When Death Takes It_s Dominion.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  338
                                           'genre'  eid-metal-trash
                                        'filesize'  5413259
                                           'mtime'  1620311570
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal of god [2005] 08 It_s eid metal trash
                                      'tag_artist'  Kreator
                                     'tag_release'  Enemy Of God
                                       'tag_title'  When Death Takes It's Dominion
                                             'bpm'  128.17
                                    'search_title'  'death':2 'dominion':7 'it':4 'its':6 's':5 'takes':3 'when':1
                                   'search_artist'  'kreator':1
                                  'search_release'  'enemy':1 'god':3 'of':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '2005':5,6 'eid':9 'god':4 'it':7 'metal':10 'of':3 's':8 'trash':11
                                    'search_combo'  '00dwimp':12 '00metal':13 '2005':16,17 'death':2A 'dominion':7A 'eid':20 'enemy':9C 'god':11C,15 'it':4A,18 'its':6A 'kreator':8B 'metal':21 'of':10C,14 's':5A,19 'takes':3A 'trash':22 'when':1A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', '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-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['german', 'thrash', 'thrash metal', 'metal', 'heavy metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311570.115837  (2021-05-06 16:32:50)
                             'size'  5413259