======================== unified (from filesystem) ========================
                                         'bitrate'  '251.566'
                                        'duration'  '1013'
                                          'artist'  'Merzbow'
                                     'text_people'  ''
                                         'release'  'Merzbuddha'
                                           'title'  'Mantra 2'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-4', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-4', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['industrial', 'noise', 'japanoise', 'experimental', 'japanese']"
                                     'discogstags'  "['electronic', 'noise']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '3'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch-breakcore;set-pl-sced'
                                             'bpm'  '124.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000C76 00000DDF 00006646 00007132 0004D82E 0005002F 00008000 00008000 '
 '0000782F 0000A047')
'TALB' (Album/Movie/Show title)                     'Merzbuddha'
'TBPM' (BPM (beats per minute))                     '124.6'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-glitch-breakcore', 'set-pl-sced']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Mantra 2'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Merzbow'
'TPE2' (Band/orchestra/accompaniment)               'Merzbow'
'TRCK' (Track number/Position in set)               '2/3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '4'
'TXXX:discogstags'                                  ['electronic', 'noise']
'TXXX:lastfmtags'                                   ['industrial', 'noise', 'japanoise', 'experimental', 'japanese']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.436289'

========================== row from database ==========================
                                              'id'  396742
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Merzbow/[2005] Merzbuddha/02 Mantra 2.mp3
                                         'working'  None
                                         'bitrate'  251
                                    'duration_sec'  1013
                                           'genre'  electronic-experimental-glitch-breakcore;set-pl-sced
                                        'filesize'  31930228
                                           'mtime'  1636136148
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [2005] 02 electronic experimental glitch breakcore;set pl sced
                                      'tag_artist'  Merzbow
                                     'tag_release'  Merzbuddha
                                       'tag_title'  Mantra 2
                                             'bpm'  124.6
                                    'search_title'  '2':2 'mantra':1
                                   'search_artist'  'merzbow':1
                                  'search_release'  'merzbuddha':1
                                     'search_rest'  '2005':1,2 'breakcore':6,8 'electronic':3 'experimental':4 'glitch':5 'pl':10 'sced':11 'set':7,9
                                    'search_combo'  '2':2A '2005':5,6 'breakcore':10,12 'electronic':7 'experimental':8 'glitch':9 'mantra':1A 'merzbow':3B 'merzbuddha':4C 'pl':14 'sced':15 'set':11,13
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-4', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['industrial', 'noise', 'japanoise', 'experimental', 'japanese']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'noise']

============================== file details ==============================
                                           'mtime'  1636136148.341187  (2021-11-05 19:15:48)
                             'size'  31930228