======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '258'
                                          'artist'  'The B-52s'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  'Love Shack'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['new wave', '80s', 'pop', 'alternative', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '47'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-zomg80s;set-pl-billboard'
                                             'bpm'  '133.403'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '133.403'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-zomg80s', 'set-pl-billboard']
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Love Shack'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The B-52s'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '47'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new wave', '80s', 'pop', 'alternative', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.626716'

========================== row from database ==========================
                                              'id'  1521065
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1989/047 - B-52_s - Love Shack.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  258
                                           'genre'  electronic-generic or radio-unsorted;set-pl-zomg80s;set-pl-billboard
                                        'filesize'  5177837
                                           'mtime'  1620385207
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1989 047 52_s electronic generic or radio unsorted;set pl zomg80s;set pl billboard
                                      'tag_artist'  The B-52s
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Love Shack
                                             'bpm'  133.403
                                    'search_title'  'love':1 'shack':2
                                   'search_artist'  '52s':3 'b':2 'b52s':4 'the':1
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1989':3 '52':4 'billboard':19 'electronic':6 'generic':7 'or':8 'pl':14 'radio':9 's':5 'set':11,13,16,18 'top100':2 'unsorted':10,12 'zomg80s':15,17
                                    'search_combo'  '00poprockelectronic':13 '1':12C '1989':15 '52':16 '52s':5B 'b':4B 'b52s':6B 'billboard':7C,31 'electronic':18 'generic':19 'love':1A 'of':11C 'or':20 'pl':26 'pop':9C 'radio':21 's':17 'set':23,25,28,30 'shack':2A 'singles':10C 'the':3B 'top':8C 'top100':14 'unsorted':22,24 'zomg80s':27,29
                                    'tag_tracknum'  47
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['new wave', '80s', 'pop', 'alternative', 'rock']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385206.858126  (2021-05-07 13:00:06)
                             'size'  5177837