======================== unified (from filesystem) ========================
                                         'bitrate'  '215.803'
                                        'duration'  '356'
                                          'artist'  'Ayria'
                                     'text_people'  ''
                                         'release'  'Flicker'
                                           'title'  'My Revenge On The World (Impla'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['ebm', 'futurepop', 'industrial', 'electronic', 'synthpop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '128.008'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Flicker'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'My Revenge On The World (Impla'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ayria'
'TPE2' (Band/orchestra/accompaniment)               'Ayria'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['ebm', 'futurepop', 'industrial', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+7.34 dB'
'TXXX:replaygain_track_peak'                        '0.197033'

========================== row from database ==========================
                                              'id'  450234
                                            'path'  /data/Music/Bulk/00dwimp/Ayria/[2005] Flicker/2-03 My Revenge On The World (Impla.mp3
                                         'working'  None
                                         'bitrate'  215
                                    'duration_sec'  356
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  9663207
                                           'mtime'  1620296528
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp [2005] 2 03 eid ebm industrial darkwave
                                      'tag_artist'  Ayria
                                     'tag_release'  Flicker
                                       'tag_title'  My Revenge On The World (Impla
                                             'bpm'  128.008
                                    'search_title'  'impla':6,7 'my':1 'on':3 'revenge':2 'the':4 'world':5
                                   'search_artist'  'ayria':1
                                  'search_release'  'flicker':1
                                     'search_rest'  '00dwimp':1 '2':4 '2005':2,3 'darkwave':8 'ebm':6 'eid':5 'industrial':7
                                    'search_combo'  '00dwimp':10 '2':13 '2005':11,12 'ayria':8B 'darkwave':17 'ebm':15 'eid':14 'flicker':9C 'impla':6A,7A 'industrial':16 'my':1A 'on':3A 'revenge':2A 'the':4A 'world':5A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['ebm', 'futurepop', 'industrial', 'electronic', 'synthpop']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296528.323191  (2021-05-06 12:22:08)
                             'size'  9663207