======================== unified (from filesystem) ========================
                                         'bitrate'  '241.764'
                                        'duration'  '271'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'What Evil Lurks'
                                           'title'  'We Gonna Rock'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                                     'discogstags'  "['electronic', 'breakbeat', 'hardcore', 'techno']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '137.106'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'What Evil Lurks'
'TBPM' (BPM (beats per minute))                     '137.106'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'We Gonna Rock'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TRCK' (Track number/Position in set)               '2'
'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:discogstags'                                  ['electronic', 'breakbeat', 'hardcore', 'techno']
'TXXX:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.31 dB'
'TXXX:replaygain_track_peak'                        '0.652420'

========================== row from database ==========================
                                              'id'  1404146
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Prodigy/What Evil Lurks (1991)/MBZ;#The Prodigy;#What Evil Lurks;#02;#We Gonna Rock.mp3
                                         'working'  None
                                         'bitrate'  241
                                    'duration_sec'  271
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  8211425
                                           'mtime'  1621695870
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat (1991) MBZ;#The Prodigy;#What Lurks;#02;#We electronic generic or radio bigbeat
                                      'tag_artist'  The Prodigy
                                     'tag_release'  What Evil Lurks
                                       'tag_title'  We Gonna Rock
                                             'bpm'  137.106
                                    'search_title'  'gonna':2 'rock':3 'we':1
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'evil':2 'lurks':3 'what':1
                                     'search_rest'  '00poprockelectronic':1 '02':16,19 '1991':5,6 'bigbeat':24 'dance':3 'electronic':21 'generic':2 'lurks':15,18 'mbz':7,9 'or':22 'prodigy':11,13 'radio':23 'the':8,10 'trapbeat':4 'we':17,20 'what':12,14
                                    'search_combo'  '00poprockelectronic':9 '02':24,27 '1991':13,14 'bigbeat':32 'dance':11 'electronic':29 'evil':7C 'generic':10 'gonna':2A 'lurks':8C,23,26 'mbz':15,17 'or':30 'prodigy':5B,19,21 'radio':31 'rock':3A 'the':4B,16,18 'trapbeat':12 'we':1A,25,28 'what':6C,20,22
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1991
                                     'discogstags'  ['electronic', 'breakbeat', 'hardcore', 'techno']

============================== file details ==============================
                                           'mtime'  1621695869.7303815  (2021-05-22 17:04:29)
                             'size'  8211425