======================== unified (from filesystem) ========================
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                                      'tracktotal'  '12'
                                            'date'  '2002'
                                        'comments'  ''
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======================== rawer (from filesystem) ========================

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'TDRC' (Recording time)                             '2002-01-22'
'TIT2' (Title/songname/content description)         'How Can I Tell I Love You?'
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'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Papa M'
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'TPUB' (Publisher)                                  'ATP Recordings'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Papa M'
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'TXXX:Artists'                                      'Papa M'
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'TXXX:originalyear'                                 '2002'
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                                           'genre'  ifs-songwriter
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                                           'mtime'  1642256548
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                                       'tag_title'  How Can I Tell I Love You?
                                             'bpm'  129.068
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                                    'tag_tracknum'  7
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                                             'key'  8B
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                                      'lastfmtags'  ['indie rock/indie/post rock/acoustic/folk/singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256547.9197218  (2022-01-15 15:22:27)
                             'size'  7784897