======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '157'
                                          'artist'  'Serge Gainsbourg'
                                     'text_people'  'Serge Gainsbourg'
                                         'release'  'Comic Strip'
                                           'title'  'Les Sucettes'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson', 'chanson francaise', 'pop', 'french', 'french pop']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '20'
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '112.696'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_IDs:eng'                          '20+46397986133773096988C1EBFFC8182A+483884'
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'TALB' (Album/Movie/Show title)                     'Comic Strip'
'TBPM' (BPM (beats per minute))                     '112.696'
'TCOM' (Composer)                                   'Serge Gainsbourg'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1966'
'TENC' (Encoded by)                                 'iTunes 9.2.1'
'TIT2' (Title/songname/content description)         'Les Sucettes'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Serge Gainsbourg'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '18/20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.695835'
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========================== row from database ==========================
                                              'id'  735923
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Serge Gainsbourg - Les Sucettes.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  157
                                           'genre'  set-th-candy
                                        'filesize'  3793961
                                           'mtime'  1621628487
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets set th candy
                                      'tag_artist'  Serge Gainsbourg
                                     'tag_release'  Comic Strip
                                       'tag_title'  Les Sucettes
                                             'bpm'  112.696
                                    'search_title'  'les':1 'sucettes':2
                                   'search_artist'  'gainsbourg':2 'serge':1
                                  'search_release'  'comic':1 'strip':2
                                     'search_rest'  'candy':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':6 'sweets':5 'th':7
                                    'search_combo'  'candy':14 'comic':5C 'country':10 'exotica':8 'gainsbourg':4B 'jazz':7 'les':1A 'oldies':9 'serge':3B 'set':12 'strip':6C 'sucettes':2A 'sweets':11 'th':13
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
                                        'tag_date'  1966
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1621628487.2430248  (2021-05-21 22:21:27)
                             'size'  3793961