======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '233'
                                          'artist'  'Jacques  Brel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ne me quitte pas'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-3', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '107.2'
                                             'key'  'D#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '107.2'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'Ne me quitte pas'
'TKEY' (Initial key)                                'D#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Jacques  Brel'
'TRCK' (Track number/Position in set)               '6'
'TXXX:MusicMagic Data'                              'AgEACmH8iJKjEAjziOouQBMVgAGAboFc6iKck//XgG7EJbM0gAHyRrIzgAHtJ4mclrKAAZy1sQmejIABgAGmJwML81+wl5HbgAKAAY6qoHDL1oWfKuY0RYE/gayE6/vVoLUgBIFf3O2gAYLzCbaz44NN3GORoIk1hJTCoLqJ2xyXy4FjsJoGav45stKp7IOVhcQ='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.764477'

========================== row from database ==========================
                                              'id'  1495040
                                            'path'  /data/Music/Other/Pa/France/Jacques  Brel/06 Ne me quitte pas.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  233
                                           'genre'  loc-eur-france
                                        'filesize'  4670022
                                           'mtime'  1621094186
                                   'redo_metaread'  0
                                        'rest_str'   Pa France 06 loc eur france
                                      'tag_artist'  Jacques  Brel
                                     'tag_release'  None
                                       'tag_title'  Ne me quitte pas
                                             'bpm'  107.2
                                    'search_title'  'me':2 'ne':1 'pas':4 'quitte':3
                                   'search_artist'  'brel':2 'jacques':1
                                  'search_release'  
                                     'search_rest'  'eur':4 'france':2 'loc':3 'pa':1
                                    'search_combo'  'brel':6B 'eur':10 'france':8 'jacques':5B 'loc':9 'me':2A 'ne':1A 'pa':7 'pas':4A 'quitte':3A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  D#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094186.2547145  (2021-05-15 17:56:26)
                             'size'  4670022