======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Clive Sands'
                                     'text_people'  ''
                                         'release'  'Sunday Sunshine: The World Of SNB Records'
                                           'title'  'Marie'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '20'
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '88.904'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 00000A3C 00000A3C 000064C8 000064C8 000267D0 000267D0 000085EA 000085EA '
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'COMM:iTunPGAP:eng'                                 '0'
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'COMM:iTunes_CDDB_IDs:eng'                          '20+797CDB5B5D92E9BFF4F0379816946F41+12049490'
'TALB' (Album/Movie/Show title)                     'Sunday Sunshine: The World Of SNB Records'
'TBPM' (BPM (beats per minute))                     '88.904'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '1969'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'Marie'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Clive Sands'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.456795'

========================== row from database ==========================
                                              'id'  762504
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/Clive Sands - Marie.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  set-pl-spelling
                                        'filesize'  4934992
                                           'mtime'  1620356308
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  Clive Sands
                                     'tag_release'  Sunday Sunshine: The World Of SNB Records
                                       'tag_title'  Marie
                                             'bpm'  88.904
                                    'search_title'  'marie':1
                                   'search_artist'  'clive':1 'sands':2
                                  'search_release'  'of':6 'records':8 'snb':7 'sunday':1 'sunshine':2,3 'the':4 'world':5
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':13 '0playlists':12 'clive':2B 'marie':1A 'of':9C 'pl':17 'records':11C 'sands':3B 'set':16 'snb':10C 'spelling':15 'sunday':4C 'sunshine':5C,6C 'the':7C 'themes':14 'world':8C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1969
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620356307.5726728  (2021-05-07 04:58:27)
                             'size'  4934992