======================== unified (from filesystem) ========================
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                                        'duration'  '245'
                                          'artist'  'Holy Toy'
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                                      'lastfmtags'  "['post-punk', 'industrial', 'experimental', 'polish', 'norway']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '19'
                                            'date'  ''
                                        'comments'  ''
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======================== rawer (from filesystem) ========================

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'TALB' (Album/Movie/Show title)                     'New Wave Complex, Volume 11'
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'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TIT2' (Title/songname/content description)         'Last Leader'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD-R'
'TPE1' (Lead performer(s)/Soloist(s))               'Holy Toy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'New Wave Complex'
'TRCK' (Track number/Position in set)               '16/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Holy Toy'
'TXXX:Acoustid Id'                                  'c3f6f53a-83db-48e5-8234-3d817eb34e4d'
'TXXX:Artists'                                      'Holy Toy'
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'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '42fcec91-42e1-4643-a1e2-bca7bdb60157'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '30efec1f-ec08-4120-9fdc-c7a48c8ea451'
'TXXX:MusicBrainz Release Group Id'                 '2ebe4e84-8c09-4cc1-b8ca-688ef2d86e31'
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'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
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'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['post-punk', 'industrial', 'experimental', 'polish', 'norway']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.795943'
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========================== row from database ==========================
                                              'id'  1484697
                                            'path'  /data/Music/Bulk/00poprockelectronic/New Wave Complex Vol.11/16 - Holy Toy - Last Leader.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  245
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  5973200
                                           'mtime'  1620571536
                                   'redo_metaread'  0
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                                     'tag_release'  New Wave Complex, Volume 11
                                       'tag_title'  Last Leader
                                             'bpm'  136.3
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                                   'search_artist'  'holy':1 'toy':2
                                  'search_release'  'complex':3,4 'new':1 'volume':5 'wave':2
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                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-3', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['post-punk', 'industrial', 'experimental', 'polish', 'norway']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571536.1172132  (2021-05-09 16:45:36)
                             'size'  5973200