======================== unified (from filesystem) ========================
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                                            'date'  '2000'
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======================== rawer (from filesystem) ========================

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'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Close to Greatness (Who Took Away the Funk mix)'
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'TMED' (Media type)                                 'CD'
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'TRCK' (Track number/Position in set)               '4/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Classen Collective'
'TSST' (Set subtitle)                               'Le Bar Rouge'
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                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
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                                       'tag_title'  Close to Greatness (Who Took Away the Funk mix)
                                             'bpm'  126.017
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                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'nu jazz', 'downtempo', 'drjazzmrfunkmusic', 'trip hop']
                                        'tag_date'  2000
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============================== file details ==============================
                                           'mtime'  1620532205.272473  (2021-05-09 05:50:05)
                             'size'  5382328