======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '398'
                                          'artist'  'The Disposable Heroes of Hiphoprisy'
                                     'text_people'  ''
                                         'release'  'Hypocrisy Is the Greatest Luxury'
                                           'title'  'Television, the Drug of the Nation'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
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                                      'lastfmtags'  "['political rap', 'political', 'hip hop', 'rap', 'alternative rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2018'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '86.882'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '86.882'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2018'
'TIT2' (Title/songname/content description)         'Television, the Drug of the Nation'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Disposable Heroes of Hiphoprisy'
'TRCK' (Track number/Position in set)               '3'
'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:lastfmtags'                                   ['political rap', 'political', 'hip hop', 'rap', 'alternative rap']
'TXXX:original release date'                        ['1992', '2018']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.59 dB'
'TXXX:replaygain_track_peak'                        '0.791713'

========================== row from database ==========================
                                              'id'  1345004
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Hypocrisy Is The Greatest Luxury__MBZ;#The Disposable Heroes of Hiphoprisy;#Hypocrisy Is the Greatest Luxury;#03;#Television, the Drug of the Nation.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  398
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  6371200
                                           'mtime'  1620572832
                                   'redo_metaread'  0
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                                      'tag_artist'  The Disposable Heroes of Hiphoprisy
                                     'tag_release'  Hypocrisy Is the Greatest Luxury
                                       'tag_title'  Television, the Drug of the Nation
                                             'bpm'  86.882
                                    'search_title'  'drug':4 'nation':6 'of':5 'television':1,2 'the':3
                                   'search_artist'  'disposable':2 'heroes':3 'hiphoprisy':5 'of':4 'the':1
                                  'search_release'  'greatest':4 'hypocrisy':1 'is':2 'luxury':5 'the':3
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                                    'search_combo'  '00poprockelectronic':17 '03':34,37 'disposable':8B 'drug':4A 'files':21,22 'greatest':15C 'heroes':9B 'hip':39 'hiphoprisy':11B,29,31 'hypocrisy':12C,30,32 'is':13C 'loose':19,20 'luxury':16C,23,26,33,36 'mbz':24,27 'nation':6A 'of':5A,10B 'or':40 'rap':42 'rnb':41 'television':1A,2A,35,38 'the':3A,7B,14C,25,28 'turntablism':43 'unsorted':18
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', '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-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['political rap', 'political', 'hip hop', 'rap', 'alternative rap']
                                        'tag_date'  2018
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572832.1380217  (2021-05-09 17:07:12)
                             'size'  6371200