======================== unified (from filesystem) ========================
                                         'bitrate'  '192.251'
                                        'duration'  '187'
                                          'artist'  'The Strokes'
                                     'text_people'  ''
                                         'release'  'Is This It - [USA]'
                                           'title'  '5.Someday'
                                           '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-3', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '105.974'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Is This It - [USA]'
'TBPM' (BPM (beats per minute))                     '105.974'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         '5.Someday'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Strokes'
'TRCK' (Track number/Position in set)               '5'
'TXXX:FMPS_Rating'                                  '0.8'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.450922'

========================== row from database ==========================
                                              'id'  1286842
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/The Strokes - Is This It - [USA] - cifsc474.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  187
                                           'genre'  rock-unsorted
                                        'filesize'  4499659
                                           'mtime'  1620392376
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] cifsc474 rock unsorted
                                      'tag_artist'  The Strokes
                                     'tag_release'  Is This It - [USA]
                                       'tag_title'  5.Someday
                                             'bpm'  105.974
                                    'search_title'  '5':1 '5someday':3 'someday':2
                                   'search_artist'  'strokes':2 'the':1
                                  'search_release'  'is':1 'it':3 'this':2 'usa':4,5
                                     'search_rest'  '00poprockelectronic':1 'cifsc474':7 'files':5,6 'loose':3,4 'rock':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':11 '5':1A '5someday':3A 'cifsc474':17 'files':15,16 'is':6C 'it':8C 'loose':13,14 'rock':18 'someday':2A 'strokes':5B 'the':4B 'this':7C 'unsorted':12 'usa':9C,10C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  11B
                                           '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-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative rock', 'alternative', 'indie rock', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392376.426483  (2021-05-07 14:59:36)
                             'size'  4499659