======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '268'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Rainy day women'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-CHART-4', "
 "'Q-JZFKS-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '96.3'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'TBPM' (BPM (beats per minute))                     '96.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TIT2' (Title/songname/content description)         'Rainy day women'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBYl8mh6WaZpFVgOboFDDUgAGBSaM5/LahJ+/BgAEalLqFiNULHb5ngAGjeYf1gaSAAcr1l7MXEYABgAGT0wZx6kOkVq4WgAKAAZZdon6pVIKLAEI2eoIggnWUNQvLor8hEYCs7BCTppETFgavaIWTwyqVaoTikLnO87026P+PLoCNsDIHz+msr3yvuYEEgG0='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.90 dB'
'TXXX:replaygain_track_peak'                        '0.491861'

========================== row from database ==========================
                                              'id'  1495108
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/Rainy day women.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  268
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  5372191
                                           'mtime'  1636135101
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  Rainy day women
                                             'bpm'  96.3
                                    'search_title'  'day':2 'rainy':1 'women':3
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'all':7 'bob':4B 'day':2A 'dylan':5B 'ifs':8 'pa':6 'rainy':1A 'rock':10 'songwriter':9 'women':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-2', 'Q-CHART-4', 'q-drums-3', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135101.4735951  (2021-11-05 18:58:21)
                             'size'  5372191