======================== unified (from filesystem) ========================
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                                        'duration'  '15'
                                          'artist'  'Everlast'
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                                           'title'  'Sen Dog'
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                                      'lastfmtags'  "['rap', 'alternative', 'hip hop', 'blues', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '18'
                                            'date'  '1999'
                                        'comments'  ''
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                                             'bpm'  '88.476'
                                             'key'  '7A'
                                        'acoustid'  'a9c7b3d6-7a5b-4bff-a5b1-19e0199ebf3b'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '88.476'
'TCMP'                                              '1'
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'TDRC' (Recording time)                             '1999-01-03'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Everlast'], ['producer', 'Dante Ross'], ['producer', 'Carl Stubner']])
'TIT2' (Title/songname/content description)         'Sen Dog'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sen Dog'
'TPE2' (Band/orchestra/accompaniment)               'Everlast'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tommy Boy'
'TRCK' (Track number/Position in set)               '6/18'
'TSO2'                                              'Everlast'
'TSOP' (Performer sort order)                       'Sen Dog'
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'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '1f242c20-f7ad-420c-a130-5e442fd8101e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rap', 'alternative', 'hip hop', 'blues', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.67 dB'
'TXXX:replaygain_track_peak'                        '0.347505'
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========================== row from database ==========================
                                              'id'  1253817
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Everlast/Whitey Ford Sings The Blues/06 - Sen Dog.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  15
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  248264
                                           'mtime'  1620587093
                                   'redo_metaread'  0
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                                      'tag_artist'  Everlast
                                     'tag_release'  Whitey Ford Sings the Blues
                                       'tag_title'  Sen Dog
                                             'bpm'  88.476
                                    'search_title'  'dog':2 'sen':1
                                   'search_artist'  'everlast':1
                                  'search_release'  'blues':5 'ford':2 'sings':3 'the':4 'whitey':1
                                     'search_rest'  'hip':6 'hiphop':1 'hop':7 'rap':2 'rnb':3 'the':5 'turntablism':4
                                    'search_combo'  'blues':8C 'dog':2A 'everlast':3B 'ford':5C 'hip':14 'hiphop':9 'hop':15 'rap':10 'rnb':11 'sen':1A 'sings':6C 'the':7C,13 'turntablism':12 'whitey':4C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rap', 'alternative', 'hip hop', 'blues', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620587093.2802365  (2021-05-09 21:04:53)
                             'size'  248264