======================== unified (from filesystem) ========================
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                                        'duration'  '240'
                                          'artist'  'Roger Waters'
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                                           'title'  'Late Home Tonight, Part I (5.1 mix)'
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                                      'lastfmtags'  "['pink floyd', 'rock', 'progressive rock', 'psychedelic', 'classic rock']"
                                     'discogstags'  "['prog rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '28'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '142.608'
                                             'key'  '10A'
                                        'acoustid'  '9e7da6ff-b35e-4ac8-9dde-9300d7fb218e'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '142.608'
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'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '2015-07-24'
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'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'Hybrid SACD'
'TPE1' (Lead performer(s)/Soloist(s))               'Roger Waters'
'TPE2' (Band/orchestra/accompaniment)               'Roger Waters'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Analogue Productions'
'TRCK' (Track number/Position in set)               '20/28'
'TSO2'                                              'Waters, Roger'
'TSOP' (Performer sort order)                       'Waters, Roger'
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'TXXX:discogstags'                                  ['prog rock', 'rock']
'TXXX:lastfmtags'                                   ['pink floyd', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
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========================== row from database ==========================
                                              'id'  1490536
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/Amused To Death/Pink Floyd - Late Home Tonight (1) - 06.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  240
                                           'genre'  rock-cppex-progressive
                                        'filesize'  3845531
                                           'mtime'  1620737713
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Pink Floyd Pink Floyd (1) 06 rock cppex progressive
                                      'tag_artist'  Roger Waters
                                     'tag_release'  Amused to Death
                                       'tag_title'  Late Home Tonight, Part I (5.1 mix)
                                             'bpm'  142.608
                                    'search_title'  '1':8 '5':7 '51':9 'home':2 'i':6 'late':1 'mix':10,11 'part':5 'tonight':3,4
                                   'search_artist'  'roger':1 'waters':2
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                                    'search_combo'  '1':8A,20,21 '5':7A '51':9A 'amused':14C 'classicprogpsy':17 'cppex':23 'death':16C 'floyd':19 'home':2A 'i':6A 'late':1A 'mix':10A,11A 'part':5A 'pink':18 'progressive':24 'rock':22 'roger':12B 'to':15C 'tonight':3A,4A 'waters':13B
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['pink floyd', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  2015
                                     'discogstags'  ['prog rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737712.9208393  (2021-05-11 14:55:12)
                             'size'  3845531