======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '26'
                                          'artist'  'Hellsing Original Soundtrack'
                                     'text_people'  ''
                                         'release'  'Ruins'
                                           'title'  'Saraba Ponkotsu WORLD'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'japanese', 'jazz', 'anime', 'hellsing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '145.790'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000003C5 000003BD 00000A03'
'COMM:iTunNORM:eng'                                 (' 000003C5 000003BD 00000A03 000009F6 00004870 00004870 0000386D 0000382D '
 '000052C6 000052C6')
'TALB' (Album/Movie/Show title)                     'Ruins'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Saraba Ponkotsu WORLD'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Hellsing Original Soundtrack'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'japanese', 'jazz', 'anime', 'hellsing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.419529'

========================== row from database ==========================
                                              'id'  264245
                                            'path'  /data/Music/Bulk/0soundtrack/Hellsing (anime ost)/Hellsing OST 2/18-Hellsing Original Soundtrack-Saraba Ponkotsu WORLD.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  26
                                           'genre'  soundtrack-video
                                        'filesize'  1060900
                                           'mtime'  1638555522
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack (anime ost) OST 2 18 soundtrack video
                                      'tag_artist'  Hellsing Original Soundtrack
                                     'tag_release'  Ruins
                                       'tag_title'  Saraba Ponkotsu WORLD
                                             'bpm'  145.79
                                    'search_title'  'ponkotsu':2 'saraba':1 'world':3
                                   'search_artist'  'hellsing':1 'original':2 'soundtrack':3
                                  'search_release'  'ruins':1
                                     'search_rest'  '0soundtrack':1 '18':7 '2':6 'anime':2,3 'ost':4,5 'soundtrack':8 'video':9
                                    'search_combo'  '0soundtrack':8 '18':14 '2':13 'anime':9,10 'hellsing':4B 'original':5B 'ost':11,12 'ponkotsu':2A 'ruins':7C 'saraba':1A 'soundtrack':6B,15 'video':16 'world':3A
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'japanese', 'jazz', 'anime', 'hellsing']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638555522.4000354  (2021-12-03 19:18:42)
                             'size'  1060900