======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '234'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'The Wall'
                                           'title'  'Pink Floyd / Another Brick In'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                                     'discogstags'  "['rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '104.015'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Wall'
'TBPM' (BPM (beats per minute))                     '104.015'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'Pink Floyd / Another Brick In'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'prog rock']
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.982425'

========================== row from database ==========================
                                              'id'  1409722
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/MBZ;#Pink Floyd;#The Wall;#05;#Pink Floyd  Another Brick In The Wall (Part2).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  rock-cppex-progressive
                                        'filesize'  3749359
                                           'mtime'  1620737713
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy MBZ;#Pink Floyd;#The Wall;#05;#Pink (Part2) rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  The Wall
                                       'tag_title'  Pink Floyd / Another Brick In
                                             'bpm'  104.015
                                    'search_title'  'another':3 'brick':4 'floyd':2 'in':5 'pink':1
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'the':1 'wall':2
                                     'search_rest'  '05':11,14 'classicprogpsy':1 'cppex':19 'floyd':6,8 'mbz':2,4 'part2':16,17 'pink':3,5,12,15 'progressive':20 'rock':18 'the':7,9 'wall':10,13
                                    'search_combo'  '05':20,23 'another':3A 'brick':4A 'classicprogpsy':10 'cppex':28 'floyd':2A,7B,15,17 'in':5A 'mbz':11,13 'part2':25,26 'pink':1A,6B,12,14,21,24 'progressive':29 'rock':27 'the':8C,16,18 'wall':9C,19,22
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1979
                                     'discogstags'  ['rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1620737713.449637  (2021-05-11 14:55:13)
                             'size'  3749359