======================== unified (from filesystem) ========================
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                                        'duration'  '876'
                                          'artist'  'Dagar Brothers'
                                     'text_people'  ''
                                         'release'  'An Anthology Of World Music: North Indian Classical Music'
                                           'title'  'Raga Ahir Bhairava: Dhamar'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-BUSY-2', "
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 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['traditional', 'indian', 'india', 'chairlift', 'folk']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '4'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '127.846'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 0000028B 00000251 00004359 0000407D 000AF5B6 00089487 00007913 00007913 '
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'COMM:iTunes_CDDB_IDs:eng'                          '4+67FC00CD3ABDF62D2E34A43F2C9E45A3+818207'
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'TBPM' (BPM (beats per minute))                     '127.846'
'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)         'Raga Ahir Bhairava: Dhamar'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dagar Brothers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/4'
'TRCK' (Track number/Position in set)               '2/4'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['traditional', 'indian', 'india', 'chairlift', 'folk']
'TXXX:q-bass'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.33 dB'
'TXXX:replaygain_track_peak'                        '0.673043'

========================== row from database ==========================
                                              'id'  924718
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/An Anthology Of World Music_ North Indian Classical Music/1-02 Raga Ahir Bhairava_ Dhamar.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  876
                                           'genre'  loc-asia-india
                                        'filesize'  21031659
                                           'mtime'  1621626975
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Music_ 1 02 Bhairava_ loc asia india
                                      'tag_artist'  Dagar Brothers
                                     'tag_release'  An Anthology Of World Music: North Indian Classical Music
                                       'tag_title'  Raga Ahir Bhairava: Dhamar
                                             'bpm'  127.846
                                    'search_title'  'ahir':2 'bhairava':3,4 'dhamar':5 'raga':1
                                   'search_artist'  'brothers':2 'dagar':1
                                  'search_release'  'an':1 'anthology':2 'classical':9 'indian':8 'music':5,6 'north':7 'of':3 'world':4
                                     'search_rest'  '00asia':1 '1':3 'asia':6 'bhairava':4 'india':7 'loc':5 'music':2
                                    'search_combo'  '00asia':17 '1':19 'ahir':2A 'an':8C 'anthology':9C 'asia':22 'bhairava':3A,4A,20 'brothers':7B 'classical':16C 'dagar':6B 'dhamar':5A 'india':23 'indian':15C 'loc':21 'music':12C,13C,18 'north':14C 'of':10C 'raga':1A 'world':11C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['traditional', 'indian', 'india', 'chairlift', 'folk']
                                        'tag_date'  1998
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621626974.8320577  (2021-05-21 21:56:14)
                             'size'  21031659