======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '257'
                                          'artist'  'Sparta'
                                     'text_people'  ''
                                         'release'  'W'
                                           'title'  'Collapse'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['post-hardcore', 'alternative rock', 'rock', 'indie', 'alternative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '146.000'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'W'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Collapse'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sparta'
'TPE2' (Band/orchestra/accompaniment)               'Sparta'
'TRCK' (Track number/Position in set)               '4'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['post-hardcore', 'alternative rock', 'rock', 'indie', 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.409277'

========================== row from database ==========================
                                              'id'  1302795
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Sparta__cifsaee6.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  257
                                           'genre'  rock-unsorted
                                        'filesize'  4113685
                                           'mtime'  1620392364
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Sparta__cifsaee6 rock unsorted
                                      'tag_artist'  Sparta
                                     'tag_release'  W
                                       'tag_title'  Collapse
                                             'bpm'  146.0
                                    'search_title'  'collapse':1
                                   'search_artist'  'sparta':1
                                  'search_release'  'w':1
                                     'search_rest'  '00poprockelectronic':1 'cifsaee6':8 'files':5,6 'loose':3,4 'rock':9 'sparta':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 'cifsaee6':11 'collapse':1A 'files':8,9 'loose':6,7 'rock':12 'sparta':2B,10 'unsorted':5 'w':3C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10B
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['post-hardcore', 'alternative rock', 'rock', 'indie', 'alternative']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392363.9703953  (2021-05-07 14:59:23)
                             'size'  4113685