======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '119'
                                          'artist'  'Claude Williamson'
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  'You Make Me Feel So Young'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['jazz guitar', 'piano', 'jazz', 'all', 'cool jazz']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1961'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '84.7'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x95\x12\x00\x00'                PRIV(owner='AverageLevel', data=b'\x95\x12\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '84.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1961'
'TIT2' (Title/songname/content description)         'You Make Me Feel So Young'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Claude Williamson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '04'
'TSSE' (Software/Hardware and settings used for encoding)  'SuperTagEditor Ver 2.01'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz guitar', 'piano', 'jazz', 'all', 'cool jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.78 dB'
'TXXX:replaygain_track_peak'                        '1.000170'

========================== row from database ==========================
                                              'id'  1482367
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Claude Williamson - you make me feel so young.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  119
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  4792955
                                           'mtime'  1620541364
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic you make me feel young prerock jb unsorted
                                      'tag_artist'  Claude Williamson
                                     'tag_release'  radio jazz 13
                                       'tag_title'  You Make Me Feel So Young
                                             'bpm'  84.7
                                    'search_title'  'feel':4 'make':2 'me':3 'so':5 'you':1 'young':6
                                   'search_artist'  'claude':1 'williamson':2
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'feel':5 'jb':8 'make':3 'me':4 'prerock':7 'unsorted':9 'you':2 'young':6
                                    'search_combo'  '00poprockelectronic':11 'claude':7B 'feel':4A,15 'jazz':10C 'jb':18 'make':2A,13 'me':3A,14 'prerock':17 'radio':9C 'so':5A 'unsorted':19 'williamson':8B 'you':1A,12 'young':6A,16
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-2', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['jazz guitar', 'piano', 'jazz', 'all', 'cool jazz']
                                        'tag_date'  1961
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620541364.1293101  (2021-05-09 08:22:44)
                             'size'  4792955