======================== unified (from filesystem) ========================
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                                        'duration'  '224'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '16'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '104'
                                             'key'  '12B'
                                        'acoustid'  'd893f5e4-869c-4852-aa9e-f4e77d8283d2'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Rough Guide to Bollywood Legends: Mohd. Rafi'
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'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-03-16'
'TIT2' (Title/songname/content description)         'Nain Lad Jai Hai'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Mohd. Rafi'
'TPE2' (Band/orchestra/accompaniment)               'Mohd. Rafi'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'World Music Network'
'TRCK' (Track number/Position in set)               '12/16'
'TSO2'                                              'Rafi, Mohammed'
'TSOP' (Performer sort order)                       'Rafi, Mohammed'
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'TXXX:Artists'                                      'Mohd. Rafi'
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'TXXX:MusicBrainz Album Artist Id'                  '28365249-f3fd-44db-8131-32cb170970c4'
'TXXX:MusicBrainz Album Id'                         'a16e396b-95d6-4eac-8ada-731abf664278'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '28365249-f3fd-44db-8131-32cb170970c4'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:file_create_datetime'                         '2010-12-28 오전 3:13:54'
'TXXX:lastfmtags'                                   ['bollywood', 'hindi', 'indian', 'soundtrack', 'rafi']
'TXXX:mood'                                         'Happy/Not party/Not aggressive/Not electronic/Not acoustic/Not sad/Relaxed'
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.76 dB'
'TXXX:replaygain_track_peak'                        '0.539415'
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========================== row from database ==========================
                                              'id'  1401729
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Mohd. Rafi - The Rough Guide to Bollywood Legends_ Mohd. Rafi (1994)/12. Nain Lad Jai Hai {from Ganga Jumna}.mp3
                                         'working'  None
                                         'bitrate'  152
                                    'duration_sec'  224
                                           'genre'  loc-asia-india
                                        'filesize'  4352721
                                           'mtime'  1621626992
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Legends_ (1994) 12. {from Ganga Jumna} loc asia india
                                      'tag_artist'  Mohd. Rafi
                                     'tag_release'  The Rough Guide to Bollywood Legends: Mohd. Rafi
                                       'tag_title'  Nain Lad Jai Hai
                                             'bpm'  104.0
                                    'search_title'  'hai':4 'jai':3 'lad':2 'nain':1
                                   'search_artist'  'mohd':1,2 'rafi':3
                                  'search_release'  'bollywood':5 'guide':3 'legends':6,7 'mohd':8,9 'rafi':10 'rough':2 'the':1 'to':4
                                     'search_rest'  '00asia':1 '12':5,6 '1994':3,4 'asia':11 'from':7 'ganga':8 'india':12 'jumna':9 'legends':2 'loc':10
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                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  12B
                                           '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-3', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['bollywood', 'hindi', 'indian', 'soundtrack', 'rafi']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626991.8984187  (2021-05-21 21:56:31)
                             'size'  4352721