======================== unified (from filesystem) ========================
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '26'
                                            'date'  '2008'
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                                             'bpm'  '140'
                                             'key'  '10B'
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'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-05-01'
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'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Jason Mraz'
'TPE2' (Band/orchestra/accompaniment)               'Jason Mraz'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Atlantic'
'TRCK' (Track number/Position in set)               '16/26'
'TSO2'                                              'Mraz, Jason'
'TSOP' (Performer sort order)                       'Mraz, Jason'
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'TXXX:lastfmtags'                                   ['acoustic', 'alternative', 'rock', 'pop', 'singer songwriter']
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'TXXX:q-vocals'                                     '4'
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                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Jason Mraz/(Jason Mraz) - 15 - We Sing - EP/03 If It Kills Me (From the Casa Nova Sessions).mp3
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                                    'duration_sec'  300
                                           'genre'  ifs-songwriter-pop
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                                           'mtime'  1620645787
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                                      'tag_artist'  Jason Mraz
                                     'tag_release'  We Sing. We Dance. We Steal Things.
                                       'tag_title'  If It Kills Me (from the Casa Nova sessions)
                                             'bpm'  140.0
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                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'alternative', 'rock', 'pop', 'singer songwriter']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'pop', 'soft rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620645787.484016  (2021-05-10 13:23:07)
                             'size'  6042953