======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '207'
                                          'artist'  'Boy & Bear'
                                     'text_people'  ''
                                         'release'  'With The Emperor Antarctica EP'
                                           'title'  'Mexican Mavis'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-3', '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-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['folk', 'australian', 'indie', 'indie folk', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '119.900'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000D8D 000010D3 00004F5D 0000BCD1 0000FF1A 0001E3E0 00008A32 000087BC '
 '00021EDB 00028687')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A8C 00000000008B4664 00000000 003F1F2F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'With The Emperor Antarctica EP'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TENC' (Encoded by)                                 'iTunes 8.2'
'TIT2' (Title/songname/content description)         'Mexican Mavis'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boy & Bear'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', 'australian', 'indie', 'indie folk', 'ambient']
'TXXX:q-bass'                                       '3'
'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:rating'                                       '4'
'TXXX:replaygain_track_gain'                        '+18.27 dB'
'TXXX:replaygain_track_peak'                        '0.047982'

========================== row from database ==========================
                                              'id'  1354400
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/boyandbear_mexicanmavis.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  207
                                           'genre'  ifs-unsorted
                                        'filesize'  4935374
                                           'mtime'  1620573096
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] boyandbear_mexicanmavis ifs unsorted
                                      'tag_artist'  Boy & Bear
                                     'tag_release'  With The Emperor Antarctica EP
                                       'tag_title'  Mexican Mavis
                                             'bpm'  119.9
                                    'search_title'  'mavis':2 'mexican':1
                                   'search_artist'  'bear':2 'boy':1
                                  'search_release'  'antarctica':4 'emperor':3 'ep':5 'the':2 'with':1
                                     'search_rest'  '00poprockelectronic':1 'boyandbear':7 'files':5,6 'ifs':9 'loose':3,4 'mexicanmavis':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'antarctica':8C 'bear':4B 'boy':3B 'boyandbear':16 'emperor':7C 'ep':9C 'files':14,15 'ifs':18 'loose':12,13 'mavis':2A 'mexican':1A 'mexicanmavis':17 'the':6C 'unsorted':11 'with':5C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'australian', 'indie', 'indie folk', 'ambient']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573095.919349  (2021-05-09 17:11:35)
                             'size'  4935374