======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '337'
                                          'artist'  'dub sweden'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'made of silk'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', '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-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'dub', 'swedish', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '118.706'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '118.706'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'made of silk'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'dub sweden'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'dub', 'swedish', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.484481'

========================== row from database ==========================
                                              'id'  1321120
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dub Sweden/dub sweden - made of silk.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  337
                                           'genre'  electronic-unsorted
                                        'filesize'  5400359
                                           'mtime'  1620569131
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Dub Sweden electronic unsorted
                                      'tag_artist'  dub sweden
                                     'tag_release'  None
                                       'tag_title'  made of silk
                                             'bpm'  118.706
                                    'search_title'  'made':1 'of':2 'silk':3
                                   'search_artist'  'dub':1 'sweden':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'dub':2 'electronic':4 'sweden':3 'unsorted':5
                                    'search_combo'  '00poprockelectronic':6 'dub':4B,7 'electronic':9 'made':1A 'of':2A 'silk':3A 'sweden':5B,8 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'dub', 'swedish', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620569130.8311398  (2021-05-09 16:05:30)
                             'size'  5400359