======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Maria Helena'
                                           'quals'  ("['Q-OLDST-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc'
                                             'bpm'  '88.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '88.0'
'TCON' (Content type, a.k.a. Genre)                 'loc'
'TIT2' (Title/songname/content description)         'Maria Helena'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWnRQgx+gv7N2g9frQ06SgAGGI4B1666YIjXll/O4moABgvP3AqmygOTtA4ABgZSAAb/UxxkKjqHQgAHOJgMjGtqAAbRlgAKAAZNEpjGvAYL9AVQ2Ra/rgxqEauuYmok2BZaG5nOReYQN6x61qaXC2XmiFIT8gV/WvsEv8TXA7IL0xHL8iffwora6i5Jcgp4='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'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'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.380375'

========================== row from database ==========================
                                              'id'  1495238
                                            'path'  /data/Music/Other/Pa/All/Maria Helena.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  loc
                                        'filesize'  3474574
                                           'mtime'  1644756102
                                   'redo_metaread'  0
                                        'rest_str'   Pa All loc
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  Maria Helena
                                             'bpm'  88.0
                                    'search_title'  'helena':2 'maria':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  'all':2 'loc':3 'pa':1
                                    'search_combo'  'all':6 'helena':2A 'loc':7 'maria':1A 'pa':5 'unknown':3B,4B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-OLDST-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1644756102.0285566  (2022-02-13 13:41:42)
                             'size'  3474574