======================== unified (from filesystem) ========================
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                                        'duration'  '169'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '20'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '151'
'TCMP'                                              '1'
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'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-03-15'
'TIT2' (Title/songname/content description)         'I Pray Thee'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Youth'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Blood and Fire'
'TRCK' (Track number/Position in set)               '4/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Big Youth'
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'TXXX:Acoustid Id'                                  'b4e61e73-acf9-4dda-a801-b1d0bc16e1d9'
'TXXX:Artists'                                      'Big Youth'
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'TXXX:CATALOGNUMBER'                                'BAFCD 045'
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'TXXX:MusicBrainz Album Id'                         '6f2ddcbe-a09c-4524-b435-dae3b2eb8bae'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
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'TXXX:MusicBrainz Release Group Id'                 '026f4933-a606-3bb5-9e0b-08efcc45b551'
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'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['jamaica', 'reggae', 'dub', 'roots reggae', 'dancehall', 'roots']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.420024'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/The Abyssinians/The Abyssinians And Friends - Tree of Satta- Volume 1/04 - The Abyssinians And Friends - Big Youth - I Pray Thee.mp3
                                         'working'  None
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                                    'duration_sec'  169
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  4126527
                                           'mtime'  1620522454
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub And Volume 1 04 And loc style reggae or dub or ska or dancehall dub roots reggae
                                      'tag_artist'  Big Youth
                                     'tag_release'  The Abyssinians and Friends: Tree of Satta
                                       'tag_title'  I Pray Thee
                                             'bpm'  151.0
                                    'search_title'  'i':1 'pray':2 'thee':3
                                   'search_artist'  'big':1 'youth':2
                                  'search_release'  'abyssinians':2 'and':3 'friends':4,5 'of':7 'satta':8 'the':1 'tree':6
                                     'search_rest'  '00reggae':1 '1':5 'and':3 'dancehall':11 'dub':2 'loc':6 'or':9 'reggae':8 'roots':12 'ska':10 'style':7 'volume':4
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                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jamaica', 'reggae', 'dub', 'roots reggae', 'dancehall', 'roots']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620522453.7660048  (2021-05-09 03:07:33)
                             'size'  4126527