======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Voodoo Glow Skulls'
                                     'text_people'  ''
                                         'release'  'Who Is? This Is?'
                                           'title'  'Revenge of the Nerds'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ska punk', 'punk rock', 'ska', 'skacore', 'punk']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '137.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Who Is? This Is?'
'TBPM' (BPM (beats per minute))                     '137.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Revenge of the Nerds'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Voodoo Glow Skulls -'
'TPE2' (Band/orchestra/accompaniment)               'Voodoo Glow Skulls'
'TPUB' (Publisher)                                  'Dr. Strange'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'ska', 'skacore', 'punk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.408030'

========================== row from database ==========================
                                              'id'  1472233
                                            'path'  /data/Music/Bulk/00poprockelectronic/Voodoo Glow Skulls/Who Is This Is/Voodoo Glow Skulls - Revenge of the Nerds.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  rock-gr-punk
                                        'filesize'  3181256
                                           'mtime'  1621696019
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock gr punk
                                      'tag_artist'  Voodoo Glow Skulls
                                     'tag_release'  Who Is? This Is?
                                       'tag_title'  Revenge of the Nerds
                                             'bpm'  137.5
                                    'search_title'  'nerds':4 'of':2 'revenge':1 'the':3
                                   'search_artist'  'glow':2 'skulls':3 'voodoo':1
                                  'search_release'  'is':2 'this':3 'who':1
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'punk':4 'rock':2
                                    'search_combo'  '00poprockelectronic':11 'glow':6B 'gr':13 'is':9C 'nerds':4A 'of':2A 'punk':14 'revenge':1A 'rock':12 'skulls':7B 'the':3A 'this':10C 'voodoo':5B 'who':8C
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'ska', 'skacore', 'punk']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621696019.2623894  (2021-05-22 17:06:59)
                             'size'  3181256