======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '310'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mr. tambourine man'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-1', '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'  '9'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '93.2'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '4411CE15+342031+21+150+10114+22233+38859+50908+63835+74721+102576+115640+138939+163360+195450+213643+238256+251543+255669+272585+288041+301407+318019+329936'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '9'
'TBPM' (BPM (beats per minute))                     '93.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TIT2' (Title/songname/content description)         'Mr. tambourine man'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '9'
'TXXX:MusicMagic Data'                              'AgEBYgFKjSuhv5frgPLmMzKqhxuAfJC2Jh6q/vcJgAHlDKvkoF88cKxZgAG/GYG6g5WAAana0hPG3IABgAGb5xh9w+GfrpYCgAKAAZimoa2rBYKQ9j06O4IDgvyUdAtTopEkrIC+7kSViJTGFdyuqYbVwgua+4RwkcXXtbkr7/2VWYD4rxoGz/B3tHC1+IOLgG0='
'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'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.42 dB'
'TXXX:replaygain_track_peak'                        '0.406181'

========================== row from database ==========================
                                              'id'  1495496
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/Mr. tambourine man.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  310
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  6223278
                                           'mtime'  1636135098
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  Mr. tambourine man
                                             'bpm'  93.2
                                    'search_title'  'man':4 'mr':1,2 'tambourine':3
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'all':8 'bob':5B 'dylan':6B 'ifs':9 'man':4A 'mr':1A,2A 'pa':7 'rock':11 'songwriter':10 'tambourine':3A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  3A
                                           '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-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135098.2896976  (2021-11-05 18:58:18)
                             'size'  6223278