======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '163'
                                          'artist'  'Todd Rhodes'
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                                         'release'  'The King [Records] R&B Box Set [Disc 1]'
                                           'title'  'Todd Rhodes - Pot Likker'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1949'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '143.8'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1949'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'Todd Rhodes - Pot Likker'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Todd Rhodes'
'TPOS' (Part of a set)                              '1/4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['spotify', 'dirty blues', 'rhythm and blues', 'rhythm & blues', 'risque']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
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'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/Todd Rhodes - Pot Likker.mp3
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                                    'duration_sec'  163
                                           'genre'  set-th-novelty
                                        'filesize'  3928143
                                           'mtime'  1620343100
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                                      'tag_artist'  Todd Rhodes
                                     'tag_release'  The King [Records] R&B Box Set [Disc 1]
                                       'tag_title'  Todd Rhodes - Pot Likker
                                             'bpm'  143.8
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                                   'search_artist'  'rhodes':2 'todd':1
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                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['spotify', 'dirty blues', 'rhythm and blues', 'rhythm & blues', 'risque']
                                        'tag_date'  1949
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620343100.2578552  (2021-05-07 01:18:20)
                             'size'  3928143