======================== unified (from filesystem) ========================
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                                        'duration'  '156'
                                          'artist'  'Rahul Dev Burman'
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                                           'title'  'Dum Maro Dum'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '129.1'
                                             'key'  '7A'
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======================== rawer (from filesystem) ========================

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'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-10-15'
'TIT2' (Title/songname/content description)         'Dum Maro Dum'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Rahul Dev Burman'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Manteca'
'TRCK' (Track number/Position in set)               '1/15'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Burman, Rahul Dev'
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'TXXX:Acoustid Id'                                  '2dd6ceda-2f81-4daa-8912-fa34b9b384f7'
'TXXX:Artists'                                      'Rahul Dev Burman'
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'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
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'TXXX:lastfmtags'                                   ['soundtrack', 'all', 'indian', 'bollywood', 'hindi']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
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'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.393345'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/00asia/asha bhosle & mohd rafi - (india) i love bollywood (2001)/01 - dum maro dum (from hare rama hare krishna) - asha bhosle & chorus.mp3
                                         'working'  None
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                                    'duration_sec'  156
                                           'genre'  loc-asia-india
                                        'filesize'  3842140
                                           'mtime'  1621508913
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                                        'rest_str'   00localcharacter 00asia asha bhosle & mohd rafi (india) love bollywood (2001) 01 dum maro dum (from hare rama hare krishna) asha bhosle & chorus loc asia india
                                      'tag_artist'  Rahul Dev Burman
                                     'tag_release'  I ♥ Bollywood: 15 Classic Tracks From Bollywood's Greatest Singers
                                       'tag_title'  Dum Maro Dum
                                             'bpm'  129.1
                                    'search_title'  'dum':1 'maro':2
                                   'search_artist'  'burman':3 'dev':2 'rahul':1
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                                    'search_combo'  '00asia':17 '2001':26,27 'asha':18 'asia':38 'bhosle':19 'bollywood':7C,8C,12C,25 'bollywoods':14C 'burman':5B 'chorus':36 'classic':9C 'dev':4B 'dum':1A,28 'from':11C,30,31 'greatest':15C 'hare':32 'i':6C 'india':22,23 'krishna':34,35 'loc':37 'love':24 'maro':2A,29 'mohd':20 'rafi':21 'rahul':3B 'rama':33 's':13C 'singers':16C 'tracks':10C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'all', 'indian', 'bollywood', 'hindi']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621508912.9851904  (2021-05-20 13:08:32)
                             'size'  3842140