======================== unified (from filesystem) ========================
                                         'bitrate'  '220.476'
                                        'duration'  '250'
                                          'artist'  'Mnemic'
                                     'text_people'  'Bideau/Mircea Gabriel Eftemie/Rasmussen/Stigart'
                                         'release'  'Passenger'
                                           'title'  "What's Left"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['industrial metal', 'metalcore', 'melodic death metal', 'metal', "
 "'industrial']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-industrial'
                                             'bpm'  '100'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{"\x00\x00'                      PRIV(owner='AverageLevel', data=b'{"\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\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 \x009\x004\x006\x005\x008\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x008\x000\x005\x004\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x000\x000\x002\x004\x000\x000\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x009\x004\x006\x005\x008\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x005\x008\x000\x005\x004\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x000\x000\x002\x004\x000\x000\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:1\x88Ç#¨\x87&C¶)\x96mø³Ò9'  PRIV(owner='WM/WMCollectionGroupID', data=b'1\x88\xc7#\xa8\x87&C\xb6)\x96m\xf8\xb3\xd29')
'PRIV:WM/WMCollectionID:1\x88Ç#¨\x87&C¶)\x96mø³Ò9'  PRIV(owner='WM/WMCollectionID', data=b'1\x88\xc7#\xa8\x87&C\xb6)\x96m\xf8\xb3\xd29')
'PRIV:WM/WMContentID:\x825\x19`ê\x91ÛM\x82\x96íg1<9r'  PRIV(owner='WM/WMContentID', data=b'\x825\x19`\xea\x91\xdbM\x82\x96\xedg1<9r')
'TALB' (Album/Movie/Show title)                     'Passenger'
'TBPM' (BPM (beats per minute))                     '100'
'TCOM' (Composer)                                   'Bideau/Mircea Gabriel Eftemie/Rasmussen/Stigart'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-industrial'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         "What's Left"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mnemic'
'TPE2' (Band/orchestra/accompaniment)               'Mnemic'
'TPUB' (Publisher)                                  'Nuclear Blast America'
'TRCK' (Track number/Position in set)               '9'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['industrial metal', 'metalcore', 'melodic death metal', 'metal', 'industrial']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.14 dB'
'TXXX:replaygain_track_peak'                        '0.404944'

========================== row from database ==========================
                                              'id'  1501037
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Mnemic/Passenger/Mnemic-Passenger-What_s Left.mp3
                                         'working'  None
                                         'bitrate'  220
                                    'duration_sec'  250
                                           'genre'  eid-metal-industrial
                                        'filesize'  6901873
                                           'mtime'  1620311071
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal What_s eid metal industrial
                                      'tag_artist'  Mnemic
                                     'tag_release'  Passenger
                                       'tag_title'  What's Left
                                             'bpm'  100.0
                                    'search_title'  'left':4 's':2 'what':1 'whats':3
                                   'search_artist'  'mnemic':1
                                  'search_release'  'passenger':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':5 'industrial':7 'metal':6 's':4 'what':3
                                    'search_combo'  '00dwimp':7 '00metal':8 'eid':11 'industrial':13 'left':4A 'metal':12 'mnemic':5B 'passenger':6C 's':2A,10 'what':1A,9 'whats':3A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'metalcore', 'melodic death metal', 'metal', 'industrial']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311071.098499  (2021-05-06 16:24:31)
                             'size'  6901873