======================== unified (from filesystem) ========================
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '11'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '142.708'
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                                        'acoustid'  ''
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======================== rawer (from filesystem) ========================

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'TDRC' (Recording time)                             '2011-10-25'
'TIT2' (Title/songname/content description)         'Franz and the Eagle'
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'TPE2' (Band/orchestra/accompaniment)               'Yo-Yo Ma, Stuart Duncan, Edgar Meyer & Chris Thile'
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'TPUB' (Publisher)                                  'Sony Classical'
'TRCK' (Track number/Position in set)               '6/11'
'TSO2'                                              'Ma, Yo-Yo, Duncan, Stuart, Meyer, Edgar & Thile, Chris'
'TSOP' (Performer sort order)                       'Ma, Yo-Yo, Duncan, Stuart, Meyer, Edgar & Thile, Chris'
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'TXXX:lastfmtags'                                   ['instrumental', 'bluegrass', 'classical', 'folk', 'classical bluegrass']
'TXXX:q-bass'                                       '1'
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'TXXX:q-drums'                                      '1'
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'TXXX:q-syn'                                        '1'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00instruments-classical/Yo-Yo Ma, Stuart Duncan, Edgar Meyer & Chris Thile - the goat rodeo sessions/06 Franz and the Eagle.mp3
                                         'working'  None
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                                    'duration_sec'  413
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  11722601
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                                      'tag_artist'  Yo-Yo Ma, Stuart Duncan, Edgar Meyer & Chris Thile
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                                       'tag_title'  Franz and the Eagle
                                             'bpm'  142.708
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                                   'search_artist'  'chris':11 'duncan':7,8 'edgar':9 'ma':4,5 'meyer':10 'stuart':6 'thile':12 'yo':1,2 'yoyo':3
                                  'search_release'  'goat':2 'rodeo':3 'sessions':4 'the':1
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                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'bluegrass', 'classical', 'folk', 'classical bluegrass']
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329810.518263  (2021-11-19 14:50:10)
                             'size'  11722601