======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '202'
                                          'artist'  'Kiss'
                                     'text_people'  ''
                                         'release'  'Kiss'
                                           'title'  '100,000 Years'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['rock', 'hard rock', 'pop rock', 'glam']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1974'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '133.228'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Kiss'
'TBPM' (BPM (beats per minute))                     '133.228'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1974'
'TIT2' (Title/songname/content description)         '100,000 Years'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kiss'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'hard rock', 'pop rock', 'glam']
'TXXX:lastfmtags'                                   ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
'TXXX:original release date'                        ['1974', '1974']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.601111'

========================== row from database ==========================
                                              'id'  1419095
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Kiss/Kiss__MBZ;#Kiss;#Kiss;#09;#100,000 Years.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  202
                                           'genre'  rock-unsorted
                                        'filesize'  4869685
                                           'mtime'  1637523175
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Kiss__MBZ;#Kiss;#Kiss;#09;#100,000 rock unsorted
                                      'tag_artist'  Kiss
                                     'tag_release'  Kiss
                                       'tag_title'  100,000 Years
                                             'bpm'  133.228
                                    'search_title'  '000':2,4 '100':1,3 'years':5
                                   'search_artist'  'kiss':1
                                  'search_release'  'kiss':1
                                     'search_rest'  '000':8,15 '09':6,13 '100':7,14 'classicprogpsy':1 'kiss':2,4,5,9,11,12 'mbz':3,10 'rock':16 'unsorted':17
                                    'search_combo'  '000':2A,4A,15,22 '09':13,20 '100':1A,3A,14,21 'classicprogpsy':8 'kiss':6B,7C,9,11,12,16,18,19 'mbz':10,17 'rock':23 'unsorted':24 'years':5A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  1974
                                     'discogstags'  ['rock', 'hard rock', 'pop rock', 'glam']

============================== file details ==============================
                                           'mtime'  1637523174.5606163  (2021-11-21 20:32:54)
                             'size'  4869685