======================== unified (from filesystem) ========================
                                         'bitrate'  '199.204'
                                        'duration'  '313'
                                          'artist'  'Alice Russell'
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                                         'release'  'Shapes Compilation Vol. 2'
                                           'title'  'Mirror Mirror on the Wolf (Bonobo mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-3', 'Q-JZFKS-3', "
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                                      'lastfmtags'  "['jazz', 'female vocalists', 'soul', 'funk', 'nu jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '99.274'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'Shapes Compilation Vol. 2'
'TBPM' (BPM (beats per minute))                     '99.274'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Lame 3.90.3'
'TIT2' (Title/songname/content description)         'Mirror Mirror on the Wolf (Bonobo mix)'
'TKEY' (Initial key)                                '3A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Alice Russell'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'female vocalists', 'soul', 'funk', 'nu jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.378423'

========================== row from database ==========================
                                              'id'  768612
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Alice Russell - MIRROR, MIRROR ON THE WOLF (Bonobo mix).mp3
                                         'working'  None
                                         'bitrate'  199
                                    'duration_sec'  313
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  7906976
                                           'mtime'  1620586787
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism MIRROR, MIRROR ON THE WOLF hip hop rnb rap turntablism
                                      'tag_artist'  Alice Russell
                                     'tag_release'  Shapes Compilation Vol. 2
                                       'tag_title'  Mirror Mirror on the Wolf (Bonobo mix)
                                             'bpm'  99.274
                                    'search_title'  'bonobo':5,6 'mirror':1 'mix':7,8 'on':2 'the':3 'wolf':4
                                   'search_artist'  'alice':1 'russell':2
                                  'search_release'  '2':5 'compilation':2 'shapes':1 'vol':3,4
                                     'search_rest'  'hip':10 'hiphop':1 'hop':11 'mirror':5,6 'on':7 'rap':2 'rnb':3 'the':8 'turntablism':4 'wolf':9
                                    'search_combo'  '2':15C 'alice':9B 'bonobo':5A,6A 'compilation':12C 'hip':25 'hiphop':16 'hop':26 'mirror':1A,20,21 'mix':7A,8A 'on':2A,22 'rap':17 'rnb':18 'russell':10B 'shapes':11C 'the':3A,23 'turntablism':19 'vol':13C,14C 'wolf':4A,24
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'soul', 'funk', 'nu jazz']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620586787.055288  (2021-05-09 20:59:47)
                             'size'  7906976