======================== unified (from filesystem) ========================
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                                        'duration'  '301'
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '12'
                                            'date'  '2000'
                                        'comments'  ''
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======================== rawer (from filesystem) ========================

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'TDRC' (Recording time)                             '2000'
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'TMED' (Media type)                                 'CD'
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'TPE2' (Band/orchestra/accompaniment)               'Lewis Black'
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'TSOP' (Performer sort order)                       'Black, Lewis'
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'TXXX:Artists'                                      'Lewis Black'
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'TXXX:Q-UNU'                                        '1'
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'TXXX:discogstags'                                  'non-music'
'TXXX:lastfmtags'                                   ['stand up comedy', 'comedy', 'political', 'spoken word', 'stand up']
'TXXX:originalyear'                                 '2000'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/0nonmusic/Lewis Black/Lewis Black - The White Album/Lewis_Black_The_White_Album_12_Other_Idiots_in_Arkansas.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  301
                                           'genre'  nonmusic-speech-comedy or drama
                                        'filesize'  6612006
                                           'mtime'  1621853453
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic Lewis_Black_The_White_Album_12_Other_Idiots_in_Arkansas nonmusic speech comedy or drama
                                      'tag_artist'  Lewis Black
                                     'tag_release'  The White Album
                                       'tag_title'  Other Idiots From Arkansas
                                             'bpm'  133.0
                                    'search_title'  'arkansas':4 'from':3 'idiots':2 'other':1
                                   'search_artist'  'black':2 'lewis':1
                                  'search_release'  'album':3 'the':1 'white':2
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                                    'search_combo'  '0nonmusic':10 '12':16 'album':9C,15 'arkansas':4A,20 'black':6B,12 'comedy':23 'drama':25 'from':3A 'idiots':2A,18 'in':19 'lewis':5B,11 'nonmusic':21 'or':24 'other':1A,17 'speech':22 'the':7C,13 'white':8C,14
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['stand up comedy', 'comedy', 'political', 'spoken word', 'stand up']
                                        'tag_date'  2000
                                     'discogstags'  ['non-music']

============================== file details ==============================
                                           'mtime'  1621853453.3019733  (2021-05-24 12:50:53)
                             'size'  6612006