======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '305'
                                          'artist'  'Public Image Ltd.'
                                     'text_people'  ''
                                         'release'  'Metal Box'
                                           'title'  'Memories'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['new wave', 'alternative', 'post punk', 'punk', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '141.413'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Cleaned by TuneUp!'
'COMM:ID3v1 Comment:XXX'                            'Cleaned by TuneUp!'
'COMM:iTunNORM:eng'                                 (' 000007AF 0000090E 00003F46 00006041 00028D55 00041BE1 00008000 00008000 '
 '000002FE 000002FE')
'TALB' (Album/Movie/Show title)                     'Metal Box'
'TBPM' (BPM (beats per minute))                     '141.413'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'Memories'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Public Image Ltd.'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new wave', 'alternative', 'post punk', 'punk', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'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'                        '0.571413'

========================== row from database ==========================
                                              'id'  1291813
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/2 memories.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  305
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  4923083
                                           'mtime'  1620572665
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 2 memories electronic we new wave post punk
                                      'tag_artist'  Public Image Ltd.
                                     'tag_release'  Metal Box
                                       'tag_title'  Memories
                                             'bpm'  141.413
                                    'search_title'  'memories':1
                                   'search_artist'  'image':2 'ltd':3,4 'public':1
                                  'search_release'  'box':2 'metal':1
                                     'search_rest'  '00poprockelectronic':1 '2':7 'electronic':9 'files':5,6 'loose':3,4 'memories':8 'new':11 'post':13 'punk':14 'unsorted':2 'wave':12 'we':10
                                    'search_combo'  '00poprockelectronic':8 '2':14 'box':7C 'electronic':16 'files':12,13 'image':3B 'loose':10,11 'ltd':4B,5B 'memories':1A,15 'metal':6C 'new':18 'post':20 'public':2B 'punk':21 'unsorted':9 'wave':19 'we':17
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['new wave', 'alternative', 'post punk', 'punk', 'experimental']
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572664.5625198  (2021-05-09 17:04:24)
                             'size'  4923083