======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '356'
                                          'artist'  'Neon'
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                                           'title'  'My Blues Is You'
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                                      'lastfmtags'  "['new wave', 'italian', 'post punk', 'dark wave', 'synthpop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '21'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
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                                             'key'  '6A'
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rest: ''

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

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'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'My Blues Is You'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD-R'
'TPE1' (Lead performer(s)/Soloist(s))               'Neon'
'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)               '12/21'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Neon'
'TXXX:Acoustid Id'                                  'fc655c44-336f-4867-982f-2561d0f9d098'
'TXXX:Artists'                                      'Neon'
'TXXX:CATALOGNUMBER'                                'ATTSB 02'
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'TXXX:MusicBrainz Album Id'                         '1a2a37cc-1e94-4a5b-b0f9-d20115142ce8'
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'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
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'TXXX:MusicBrainz Release Group Id'                 'df36bc52-2630-45c0-88ff-7fe8fb223e7b'
'TXXX:MusicBrainz Release Track Id'                 'c57c37c8-a5db-3d22-b1a9-cf115bc53015'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['new wave', 'italian', 'post punk', 'dark wave', 'synthpop']
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.696556'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9f9aa422-97e9-4d4e-8b95-908d30107d45')

========================== row from database ==========================
                                              'id'  851011
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/A Tribute To Some Bizarre/A Tribute To Some Bizarre Vol. 2 [192k]/12 - neon - my blues is you.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  356
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  8653726
                                           'mtime'  1628353738
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm To To Vol. [192k] 12 neon my blues is you electronic we electropop or synthpop
                                      'tag_artist'  Neon
                                     'tag_release'  A Tribute to Some Bizarre, Volume 2
                                       'tag_title'  My Blues Is You
                                             'bpm'  120.3
                                    'search_title'  'blues':2 'is':3 'my':1 'you':4
                                   'search_artist'  'neon':1
                                  'search_release'  '2':8 'a':1 'bizarre':5,6 'some':4 'to':3 'tribute':2 'volume':7
                                     'search_rest'  '192k':4,5 'blues':8 'electronic':11 'electropop':13 'is':9 'my':7 'neon':6 'or':14 'synthpop':15 'to':1 'vol':2,3 'we':12 'you':10
                                    'search_combo'  '192k':17,18 '2':13C 'a':6C 'bizarre':10C,11C 'blues':2A,21 'electronic':24 'electropop':26 'is':3A,22 'my':1A,20 'neon':5B,19 'or':27 'some':9C 'synthpop':28 'to':8C,14 'tribute':7C 'vol':15,16 'volume':12C 'we':25 'you':4A,23
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['new wave', 'italian', 'post punk', 'dark wave', 'synthpop']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1628353737.7712305  (2021-08-07 18:28:57)
                             'size'  8653726