======================== unified (from filesystem) ========================
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                                        'duration'  '217'
                                          'artist'  'Rupert Hine'
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                                      'lastfmtags'  "['british', 'synthpop', 'new wave', 'synth pop', '80s', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '25'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  ('electronic-unsorted;electronic-we-new wave or post '
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '86.4'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted',
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 'electronic-we-electropop or synthpop']
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Picture Phone'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD-R'
'TPE1' (Lead performer(s)/Soloist(s))               'Rupert Hine'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'A Tribute to Some Bizarre'
'TRCK' (Track number/Position in set)               '5/25'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Hine, Rupert'
'TXXX:Acoustid Id'                                  '0157c6f9-3eec-4d10-bcf8-bd4034886593'
'TXXX:Artists'                                      'Rupert Hine'
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'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '690e63e5-baa2-4d49-92ae-973562b74469'
'TXXX:MusicBrainz Release Group Id'                 '388c8cf1-d028-41f6-81da-92bce3554509'
'TXXX:MusicBrainz Release Track Id'                 'bc1940e7-cdab-3c76-8c2b-97d12d59baac'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
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'TXXX:lastfmtags'                                   ['british', 'synthpop', 'new wave', 'synth pop', '80s', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.668173'
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                                         'working'  None
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                                    'duration_sec'  217
                                           'genre'  electronic-unsorted;electronic-we-new wave or post punk;electronic-we-electropop or synthpop
                                        'filesize'  4349357
                                           'mtime'  1620516574
                                   'redo_metaread'  0
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                                      'tag_artist'  Rupert Hine
                                     'tag_release'  A Tribute to Some Bizarre, Volume 1
                                       'tag_title'  Picture Phone
                                             'bpm'  86.4
                                    'search_title'  'phone':2 'picture':1
                                   'search_artist'  'hine':2 'rupert':1
                                  'search_release'  '1':8 'a':1 'bizarre':5,6 'some':4 'to':3 'tribute':2 'volume':7
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                                    'search_combo'  '1':12C '128k':16,17 '192k':18,19 'a':5C 'bizarre':9C,10C 'electronic':20,22,24,31,33 'electropop':34 'hine':4B 'new':26 'or':28 'phone':2A 'picture':1A 'post':29 'punk':30,32 'rupert':3B 'some':8C 'synthpop':35 'to':7C,13 'tribute':6C 'unsorted':21,23 'vol':14,15 'volume':11C 'wave':27 'we':25
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['british', 'synthpop', 'new wave', 'synth pop', '80s', 'electronic']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620516573.524199  (2021-05-09 01:29:33)
                             'size'  4349357