======================== unified (from filesystem) ========================
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                                        'duration'  '132'
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                                      'tracktotal'  '31'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '87.977'
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'TIT2' (Title/songname/content description)         'Drunken Guitar'
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Lushes'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '24/31'
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'TXXX:lastfmtags'                                   ['rock and roll', 'surf', 'rhythm and blues', 'joyful', '1960s']
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========================== row from database ==========================
                                              'id'  1340534
                                            'path'  /data/Music/Bulk/00poprockelectronic/las vegas grinds/24 Drunken Guitar.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  132
                                           'genre'  rock-unsorted
                                        'filesize'  2713856
                                           'mtime'  1679089604
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                                      'tag_artist'  The Lushes
                                     'tag_release'  Las Vegas Grind, Part 1
                                       'tag_title'  Drunken Guitar
                                             'bpm'  87.977
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                                   'search_artist'  'lushes':2 'the':1
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                                     'search_rest'  '00poprockelectronic':1 '24':5 'grinds':4 'las':2 'rock':6 'unsorted':7 'vegas':3
                                    'search_combo'  '00poprockelectronic':11 '1':10C '24':15 'drunken':1A 'grind':7C,8C 'grinds':14 'guitar':2A 'las':5C,12 'lushes':4B 'part':9C 'rock':16 'the':3B 'unsorted':17 'vegas':6C,13
                                    'tag_tracknum'  24
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['rock and roll', 'surf', 'rhythm and blues', 'joyful', '1960s']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1679089603.9676502  (2023-03-17 22:46:43)
                             'size'  2713856