======================== unified (from filesystem) ========================
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                                        'duration'  '228'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '12'
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======================== rawer (from filesystem) ========================

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'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-10-11'
'TIT2' (Title/songname/content description)         'Happiness Is An Option'
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'TMED' (Media type)                                 'CD'
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'TPE2' (Band/orchestra/accompaniment)               'Pet Shop Boys'
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'TPUB' (Publisher)                                  'Parlophone'
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'TSO2'                                              'Pet Shop Boys'
'TSOP' (Performer sort order)                       'Pet Shop Boys'
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'TXXX:Artists'                                      'Pet Shop Boys'
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'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'pop', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
'TXXX:originalyear'                                 '1999'
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'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
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'TXXX:q-piano'                                      '1'
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'TXXX:q-syn'                                        '3'
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'TXXX:replaygain_track_peak'                        '0.458747'
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========================== row from database ==========================
                                              'id'  1421345
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Pet Shop Boys/Nightlife/04 Happiness Is an Option.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  228
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  9135816
                                           'mtime'  1620610091
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo 04 an electronic we disco or italo
                                      'tag_artist'  Pet Shop Boys
                                     'tag_release'  Nightlife
                                       'tag_title'  Happiness Is An Option
                                             'bpm'  85.2
                                    'search_title'  'an':3 'happiness':1 'is':2 'option':4
                                   'search_artist'  'boys':3 'pet':1 'shop':2
                                  'search_release'  'nightlife':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'an':6 'disco':3 'electronic':7 'italo':5 'or':9 'waves':2 'we':8
                                    'search_combo'  '00disco':12 '00poprockelectronic':9 'an':3A,14 'boys':7B 'disco':11 'electronic':15 'happiness':1A 'is':2A 'italo':13 'nightlife':8C 'option':4A 'or':17 'pet':5B 'shop':6B 'waves':10 'we':16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'pop', 'synthpop']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'pop', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1620610090.8419805  (2021-05-10 03:28:10)
                             'size'  9135816