======================== unified (from filesystem) ========================
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                                        'duration'  '178'
                                          'artist'  'U. Roy Junior'
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                                         'release'  'Reggae Singles'
                                           'title'  'Sharper Than a Razor'
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                             'musicbrainz_trackid'  ''
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                                            'date'  '2000'
                                        'comments'  ''
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                                             'key'  '3A'
                                        'acoustid'  '4e8cc418-6063-47ea-93c9-60f945397ee0'
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======================== rawer (from filesystem) ========================

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'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Sharper Than a Razor'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'U. Roy Junior'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Trojan Records'
'TSOP' (Performer sort order)                       'U-Roy Junior'
'TXXX:ASIN'                                         'B00004Y25Q'
'TXXX:Acoustid Id'                                  '4e8cc418-6063-47ea-93c9-60f945397ee0'
'TXXX:Artists'                                      'U. Roy Junior'
'TXXX:BARCODE'                                      '766126102096'
'TXXX:CATALOGNUMBER'                                'TRBCD 020'
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'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'e0783331-66e9-4b24-844a-d43170b1d61b'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+4.10 dB'
'TXXX:replaygain_track_peak'                        '0.592004'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'594a1fd4-ab1e-4c06-b544-f5315a5579c3')

========================== row from database ==========================
                                              'id'  1512588
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/[ja success dsr re 6527 7__ a] u roy junior - sharper than a razor.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  178
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  3567789
                                           'mtime'  1620524175
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles [ja success dsr re 6527 7__ a] roy junior sharper than razor loc style reggae dub ska dancehall dub roots and reggae
                                      'tag_artist'  U. Roy Junior
                                     'tag_release'  Reggae Singles
                                       'tag_title'  Sharper Than a Razor
                                             'bpm'  145.267
                                    'search_title'  'a':3 'razor':4 'sharper':1 'than':2
                                   'search_artist'  'junior':4 'roy':3 'u':1,2
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '6527':8 '7':9 'a':10,11 'and':23 'dancehall':21 'dsr':6 'dub':19 'ja':3,4 'junior':13 'loc':17 'razor':16 're':7 'reggae':1 'roots':22 'roy':12 'sharper':14 'singles':2 'ska':20 'style':18 'success':5 'than':15
                                    'search_combo'  '6527':18 '7':19 'a':3A,20,21 'and':33 'dancehall':31 'dsr':16 'dub':29 'ja':13,14 'junior':8B,23 'loc':27 'razor':4A,26 're':17 'reggae':9C,11 'roots':32 'roy':7B,22 'sharper':1A,24 'singles':10C,12 'ska':30 'style':28 'success':15 'than':2A,25 'u':5B,6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524175.1310577  (2021-05-09 03:36:15)
                             'size'  3567789