======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '276'
                                          'artist'  'Simon & Garfunkel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Bridge over troubled water'
                                           'quals'  ("['Q-HAP-2', 'Q-BUSY-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-1', 'Q-CHART-3', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['folk', 'classic rock', 'singer-songwriter', 'acoustic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '89.8'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000008A7 0000000A 00007DF0 00000E92 00000DAC 0003E2CB 0000679D 000067A5 '
 '0000E478 0000E478')
'TBPM' (BPM (beats per minute))                     '89.8'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Bridge over troubled water'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Simon & Garfunkel'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBXVnRg2e6uK/5gnbh6FE6gAGHMoOe9C+a1ScjgTzGCoABi8fqdqm6hGyvrIABhC+AAcf6N53lx5mQgAHGJvQ10zKAAbNJgAKAAZ0coIDCTYWm6y06L5Dog/SClfCAmywuo4QA3weX7oRW/EeuyZSVwtKQAIQygWTIVb+n6AamyYH/uMz0AO0Soaev/YeMgIY='
'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:lastfmtags'                                   ['folk', 'classic rock', 'singer-songwriter', 'acoustic', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.25 dB'
'TXXX:replaygain_track_peak'                        '0.483295'

========================== row from database ==========================
                                              'id'  1495167
                                            'path'  /data/Music/Other/Pa/All/Simon & Garfunkel/Bridge over troubled water.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  276
                                           'genre'  ifs-songwriter
                                        'filesize'  5526968
                                           'mtime'  1637330799
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter
                                      'tag_artist'  Simon & Garfunkel
                                     'tag_release'  None
                                       'tag_title'  Bridge over troubled water
                                             'bpm'  89.8
                                    'search_title'  'bridge':1 'over':2 'troubled':3 'water':4
                                   'search_artist'  'garfunkel':2 'simon':1
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'songwriter':4
                                    'search_combo'  'all':8 'bridge':1A 'garfunkel':6B 'ifs':9 'over':2A 'pa':7 'simon':5B 'songwriter':10 'troubled':3A 'water':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           '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-3', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  ['folk', 'classic rock', 'singer-songwriter', 'acoustic', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330799.0823517  (2021-11-19 15:06:39)
                             'size'  5526968