======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '301'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Absolutely sweet Marie'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-2', 'q-drums-2', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-CHART-4', "
 "'Q-JZFKS-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '133.3'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '133.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TIT2' (Title/songname/content description)         'Absolutely sweet Marie'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBXRNHi5GgLotqgIneDVtegAGCmKrmDTaeiSzjgFUZJIABkakWHa4ngAGkc9z+gIyAASV7jlcVwoABiPKvrgdu4gXDvt5JgAKAAZ52oN6p14I06tQ8KYOug+GVsQNqn9wtOIFR9LaajJtUDUGuLouRuLKkn4LulOfslq8VBoueQ4MastcC5Pbuul/EuIw9gzA='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.440311'

========================== row from database ==========================
                                              'id'  1495634
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/Absolutely sweet Marie.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  301
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  6044010
                                           'mtime'  1636135091
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  Absolutely sweet Marie
                                             'bpm'  133.3
                                    'search_title'  'absolutely':1 'marie':3 'sweet':2
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'absolutely':1A 'all':7 'bob':4B 'dylan':5B 'ifs':8 'marie':3A 'pa':6 'rock':10 'songwriter':9 'sweet':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-2', 'Q-CHART-4', 'q-drums-2', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135090.705942  (2021-11-05 18:58:10)
                             'size'  6044010