======================== unified (from filesystem) ========================
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                                        'duration'  '254'
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                                      'lastfmtags'  "['blues rock', 'blues', 'rock', 'soul', 'classic rock']"
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                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '145.580'
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======================== rawer (from filesystem) ========================

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'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Cocker'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/04 - Joe Cocker - When The Night Comes.mp3
                                         'working'  None
                                         'bitrate'  201
                                    'duration_sec'  254
                                           'genre'  rock-pop-early-blues
                                        'filesize'  6394707
                                           'mtime'  1620736766
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 04 rock pop early blues
                                      'tag_artist'  Joe Cocker
                                     'tag_release'  The Best of 1980-1990, Volume 4 (disc 1)
                                       'tag_title'  When the Night Comes
                                             'bpm'  145.58
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                                   'search_artist'  'cocker':2 'joe':1
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                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'rock', 'soul', 'classic rock']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736765.6567726  (2021-05-11 14:39:25)
                             'size'  6394707