======================== unified (from filesystem) ========================
                                         'bitrate'  '250.396'
                                        'duration'  '291'
                                          'artist'  'Mono'
                                     'text_people'  ''
                                         'release'  'One Step More And You Die'
                                           'title'  'Sabbath'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'post rock', 'japanese', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  '08'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-post;set-pl-sced'
                                             'bpm'  '113.9'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000003FC 00000586 00001E94 00003184 0003C55D 0003A2E4 00008000 00007FC5 '
 '0003A312 0003A312')
'TALB' (Album/Movie/Show title)                     'One Step More And You Die'
'TBPM' (BPM (beats per minute))                     '113.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-post', 'set-pl-sced']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Sabbath'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mono'
'TPE2' (Band/orchestra/accompaniment)               'Mono'
'TRCK' (Track number/Position in set)               '03/08'
'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'                                   ['instrumental', 'post rock', 'japanese', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.31 dB'
'TXXX:replaygain_track_peak'                        '0.510344'

========================== row from database ==========================
                                              'id'  421164
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Mono/[2002] One Step More And You Die/03 Sabbath.mp3
                                         'working'  None
                                         'bitrate'  250
                                    'duration_sec'  291
                                           'genre'  rock-post;set-pl-sced
                                        'filesize'  9159755
                                           'mtime'  1636923225
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [2002] 03 rock post;set pl sced
                                      'tag_artist'  Mono
                                     'tag_release'  One Step More And You Die
                                       'tag_title'  Sabbath
                                             'bpm'  113.9
                                    'search_title'  'sabbath':1
                                   'search_artist'  'mono':1
                                  'search_release'  'and':4 'die':6 'more':3 'one':1 'step':2 'you':5
                                     'search_rest'  '2002':1,2 'pl':8 'post':4,6 'rock':3 'sced':9 'set':5,7
                                    'search_combo'  '2002':9,10 'and':6C 'die':8C 'mono':2B 'more':5C 'one':3C 'pl':16 'post':12,14 'rock':11 'sabbath':1A 'sced':17 'set':13,15 'step':4C 'you':7C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'post rock', 'japanese', 'ambient']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636923225.2585685  (2021-11-14 21:53:45)
                             'size'  9159755