======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '303'
                                          'artist'  'Rush'
                                     'text_people'  'Geddy Lee/Neil Peart'
                                         'release'  ''
                                           'title'  'Fly by Night/In the Mood'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'hard rock', 'progressive rock', 'progressive', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '89.6'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'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 \x005\x008\x005\x007\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x003\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x006\x009\x001\x004\x006\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x008\x005\x007\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x003\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x006\x009\x001\x004\x006\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\\\x04ô;Êá+O°È\x8cÙ\x98¥\x03\x12'  PRIV(owner='WM/WMCollectionGroupID', data=b'\\\x04\xf4;\xca\xe1+O\xb0\xc8\x8c\xd9\x98\xa5\x03\x12')
'PRIV:WM/WMCollectionID:\\\x04ô;Êá+O°È\x8cÙ\x98¥\x03\x12'  PRIV(owner='WM/WMCollectionID', data=b'\\\x04\xf4;\xca\xe1+O\xb0\xc8\x8c\xd9\x98\xa5\x03\x12')
'PRIV:WM/WMContentID:\x8fë¹\x1dü\x8a\x8dN\x95ȤP·¢tª'  PRIV(owner='WM/WMContentID', data=b'\x8f\xeb\xb9\x1d\xfc\x8a\x8dN\x95\xc8\xa4P\xb7\xa2t\xaa')
'PRIV:ZuneAlbumArtistMediaID:\x00\x00\x14Ë\x00\x06Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumArtistMediaID', data=b'\x00\x00\x14\xcb\x00\x06\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneAlbumMediaID:\x00\x0c#ù\x00\x01Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumMediaID', data=b'\x00\x0c#\xf9\x00\x01\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneCollectionID:\x80ÃtƧ\x8b&D¯j~\x12\x1dã\x08®'  PRIV(owner='ZuneCollectionID', data=b'\x80\xc3t\xc6\xa7\x8b&D\xafj~\x12\x1d\xe3\x08\xae')
'PRIV:ZuneMediaID:\x00\x0c#ÿ\x01Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneMediaID', data=b'\x00\x0c#\xff\x01\xdb\x11\x89\xca\x00\x19\xb9*93')
'TBPM' (BPM (beats per minute))                     '89.6'
'TCOM' (Composer)                                   'Geddy Lee/Neil Peart'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Fly by Night/In the Mood'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rush'
'TPE2' (Band/orchestra/accompaniment)               'Rush'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Island Mercury'
'TRCK' (Track number/Position in set)               '3/10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'hard rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.426663'

========================== row from database ==========================
                                              'id'  1387516
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/008 Rush - Fly by Night-In the Mood.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  303
                                           'genre'  rock-cppex
                                        'filesize'  12162944
                                           'mtime'  1620737383
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 008 rock cppex
                                      'tag_artist'  Rush
                                     'tag_release'  None
                                       'tag_title'  Fly by Night/In the Mood
                                             'bpm'  89.6
                                    'search_title'  'by':2 'fly':1 'in':4 'mood':7 'night':3 'nightin':5 'the':6
                                   'search_artist'  'rush':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'cppex':8 'files':5,6 'loose':3,4 'rock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'by':2A 'cppex':16 'files':13,14 'fly':1A 'in':4A 'loose':11,12 'mood':7A 'night':3A 'nightin':5A 'rock':15 'rush':8B 'the':6A 'unsorted':10
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'hard rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737383.0006602  (2021-05-11 14:49:43)
                             'size'  12162944