======================== unified (from filesystem) ========================
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/BT/Movement in Still Life/04 The Hip Hop Phenomenon.mp3
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                                    'duration_sec'  317
                                           'genre'  electronic-generic or radio-dance
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                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trance', 'techno', 'electronic', 'dance']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696106.4399722  (2021-05-22 17:08:26)
                             'size'  7652882