======================== unified (from filesystem) ========================
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                                        'duration'  '201'
                                          'artist'  'Sangit Vidyarnab Gopeswar Banerjee'
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                                         'release'  ('Indian Talking Machine: 78 RPM Record and Gramophone Collecting on the '
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                                           'title'  'Sitar Instrumental: Kafi Tetala'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '23'
                                            'date'  '2016'
                                        'comments'  ''
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                                             'bpm'  '105'
                                             'key'  '6A'
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rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     ('Indian Talking Machine: 78 RPM Record and Gramophone Collecting on the '
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'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDOR' (Original release time)                      '2016'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Sitar Instrumental: Kafi Tetala'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sangit Vidyarnab Gopeswar Banerjee'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Sublime Frequencies'
'TRCK' (Track number/Position in set)               '5/23'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Banerjee, Sangit Vidyarnab Gopeswar'
'TXXX:Acoustid Id'                                  '6d919399-5df5-4d4e-aa35-1be5b9af784b'
'TXXX:Artists'                                      'Sangit Vidyarnab Gopeswar Banerjee'
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'TXXX:MusicBrainz Album Id'                         'ea1b7132-96d4-48f1-88cb-99dc765f4361'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '2016'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.71 dB'
'TXXX:replaygain_track_peak'                        '0.668426'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'72b4460f-28d4-4deb-975b-6f364c55cba0')

========================== row from database ==========================
                                              'id'  932848
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Indian Talking Machine 78 RPM Record and Gramophone Collecting on the Sub-Continent/05 Sitar instrumental- kafi tetala.mp3
                                         'working'  None
                                         'bitrate'  133
                                    'duration_sec'  201
                                           'genre'  loc-asia-india
                                        'filesize'  3457299
                                           'mtime'  1621629143
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 05 instrumental kafi tetala loc asia india
                                      'tag_artist'  Sangit Vidyarnab Gopeswar Banerjee
                                     'tag_release'  Indian Talking Machine: 78 RPM Record and Gramophone Collecting on the Sub-Continent
                                       'tag_title'  Sitar Instrumental: Kafi Tetala
                                             'bpm'  105.0
                                    'search_title'  'instrumental':2,3 'kafi':4 'sitar':1 'tetala':5
                                   'search_artist'  'banerjee':4 'gopeswar':3 'sangit':1 'vidyarnab':2
                                  'search_release'  '78':5 'and':8 'collecting':10 'continent':14 'gramophone':9 'indian':1 'machine':3,4 'on':11 'record':7 'rpm':6 'sub':13 'subcontinent':15 'talking':2 'the':12
                                     'search_rest'  '00asia':1 'asia':6 'india':7 'instrumental':2 'kafi':3 'loc':5 'tetala':4
                                    'search_combo'  '00asia':25 '78':14C 'and':17C 'asia':30 'banerjee':9B 'collecting':19C 'continent':23C 'gopeswar':8B 'gramophone':18C 'india':31 'indian':10C 'instrumental':2A,3A,26 'kafi':4A,27 'loc':29 'machine':12C,13C 'on':20C 'record':16C 'rpm':15C 'sangit':6B 'sitar':1A 'sub':22C 'subcontinent':24C 'talking':11C 'tetala':5A,28 'the':21C 'vidyarnab':7B
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629142.900135  (2021-05-21 22:32:22)
                             'size'  3457299