======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '305'
                                          'artist'  'Zamir Ahmad Khan'
                                     'text_people'  ''
                                         'release'  'Anthology of World Music - North Indian Classical Music'
                                           'title'  'Tabla. Tala Dadra'
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                                      'lastfmtags'  "['classical']"
                                     'discogstags'  "['indian classical', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '7'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '113.010'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDRC' (Recording time)                             '1998'
'TENC' (Encoded by)                                 'iTunes v4.7.1'
'TIT2' (Title/songname/content description)         'Tabla. Tala Dadra'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Zamir Ahmad Khan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/4'
'TRCK' (Track number/Position in set)               '7/7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['indian classical', 'folk, world, & country']
'TXXX:lastfmtags'                                   'classical'
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'TXXX:q-drums'                                      '4'
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'TXXX:replaygain_track_peak'                        '0.867412'

========================== row from database ==========================
                                              'id'  928467
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/An Anthology Of World Music_ North Indian Classical Music/2-07 Tabla. Tala Dadra.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  305
                                           'genre'  loc-asia-india
                                        'filesize'  7328027
                                           'mtime'  1621626976
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Of Music_ 2 07 loc asia india
                                      'tag_artist'  Zamir Ahmad Khan
                                     'tag_release'  Anthology of World Music - North Indian Classical Music
                                       'tag_title'  Tabla. Tala Dadra
                                             'bpm'  113.01
                                    'search_title'  'dadra':4 'tabla':1,2 'tala':3
                                   'search_artist'  'ahmad':2 'khan':3 'zamir':1
                                  'search_release'  'anthology':1 'classical':7 'indian':6 'music':4 'north':5 'of':2 'world':3
                                     'search_rest'  '00asia':1 '2':4 'asia':6 'india':7 'loc':5 'music':3 'of':2
                                    'search_combo'  '00asia':15 '2':18 'ahmad':6B 'anthology':8C 'asia':20 'classical':14C 'dadra':4A 'india':21 'indian':13C 'khan':7B 'loc':19 'music':11C,17 'north':12C 'of':9C,16 'tabla':1A,2A 'tala':3A 'world':10C 'zamir':5B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['classical']
                                        'tag_date'  1998
                                     'discogstags'  ['indian classical', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621626975.9984686  (2021-05-21 21:56:15)
                             'size'  7328027