======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '238'
                                          'artist'  'Computer Magic'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The End of Time'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-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-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['synthpop', 'electronic', 'glo-fi', 'american', 'birp']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '6'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.032'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000169C 0000198F 0000A360 0000C6B6 00031514 00022563 00008974 00008ED3 '
 '000246F5 0002FBFA')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007D0 0000000000A02FA0 00000000 0091336E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TBPM' (BPM (beats per minute))                     '123.032'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TENC' (Encoded by)                                 'iTunes 10.1.1'
'TIT2' (Title/songname/content description)         'The End of Time'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Computer Magic'
'TRCK' (Track number/Position in set)               '3/6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['synthpop', 'electronic', 'glo-fi', 'american', 'birp']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+19.66 dB'
'TXXX:replaygain_track_peak'                        '0.035119'

========================== row from database ==========================
                                              'id'  1302815
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/discoworkout/TheEndofTime.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  238
                                           'genre'  electronic-unsorted
                                        'filesize'  9623142
                                           'mtime'  1620573240
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted discoworkout TheEndofTime electronic unsorted
                                      'tag_artist'  Computer Magic
                                     'tag_release'  None
                                       'tag_title'  The End of Time
                                             'bpm'  123.032
                                    'search_title'  'end':2 'of':3 'the':1 'time':4
                                   'search_artist'  'computer':1 'magic':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'discoworkout':3 'electronic':5 'endof':7 'the':6 'theendoftime':4 'time':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'computer':5B 'discoworkout':9 'electronic':11 'end':2A 'endof':13 'magic':6B 'of':3A 'the':1A,12 'theendoftime':10 'time':4A,14 'unsorted':8
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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'  ['synthpop', 'electronic', 'glo-fi', 'american', 'birp']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573240.020806  (2021-05-09 17:14:00)
                             'size'  9623142