======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '176'
                                          'artist'  'Simon & Garfunkel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'El condor pasa'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', 'Q-CHART-3', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '143.1'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'El condor pasa'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Simon & Garfunkel'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBXXfAgr+7KKd+gAFLMzHYpySDyIFc6TKXKCEigJG6eYABgAHdF7b9hwzQKoABhQOAAbg9Eo/tfqUSgAG+Uvuw7a+AAaZsgAKAAZ0CoIbCK4Wh65A6S5ESg/aClvBrmyoutIQA3vWXr4RP/DGu1JSKws+P/oQvgWTIWr/I6B6mxoH/uNXz++zvoXiwAIeMgIY='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.572477'

========================== row from database ==========================
                                              'id'  1495190
                                            'path'  /data/Music/Other/Pa/All/Simon & Garfunkel/El condor pasa.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  176
                                           'genre'  ifs-songwriter
                                        'filesize'  3526931
                                           'mtime'  1637330799
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter
                                      'tag_artist'  Simon & Garfunkel
                                     'tag_release'  None
                                       'tag_title'  El condor pasa
                                             'bpm'  143.1
                                    'search_title'  'condor':2 'el':1 'pasa':3
                                   'search_artist'  'garfunkel':2 'simon':1
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'songwriter':4
                                    'search_combo'  'all':7 'condor':2A 'el':1A 'garfunkel':5B 'ifs':8 'pa':6 'pasa':3A 'simon':4B 'songwriter':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-3', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330799.2777903  (2021-11-19 15:06:39)
                             'size'  3526931