======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '147'
                                          'artist'  'Boudewijn De Groot'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Strand'
                                           'quals'  ("['Q-HAP-3', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', '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'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '136.7'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '136.7'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'Strand'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boudewijn De Groot'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBYrTRgoiOYKRRg1juQIABkhqJ64SF4/Gd9zcPibyuOYABgAHxXrYagAHbwYABgAGAAbofjq0DCYABgAHSndNj84WAAa9SgAKAAZaGno7E44Tu6mIvco4DhBqDSfU0mlA2fIrh5NSRcINr/96vTpnrxq+WbIPGgFnMzb4j71Cyx4BtuUn9Vu5ipDy0GoiVgJA='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'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'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.435186'

========================== row from database ==========================
                                              'id'  1495571
                                            'path'  /data/Music/Other/Pa/Nederlands/Boudewijn de Groot/Strand.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  147
                                           'genre'  loc-eur-netherlands
                                        'filesize'  2955754
                                           'mtime'  1621630396
                                   'redo_metaread'  0
                                        'rest_str'   Pa Nederlands loc eur netherlands
                                      'tag_artist'  Boudewijn De Groot
                                     'tag_release'  None
                                       'tag_title'  Strand
                                             'bpm'  136.7
                                    'search_title'  'strand':1
                                   'search_artist'  'boudewijn':1 'de':2 'groot':3
                                  'search_release'  
                                     'search_rest'  'eur':4 'loc':3 'nederlands':2 'netherlands':5 'pa':1
                                    'search_combo'  'boudewijn':2B 'de':3B 'eur':8 'groot':4B 'loc':7 'nederlands':6 'netherlands':9 'pa':5 'strand':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630396.2358432  (2021-05-21 22:53:16)
                             'size'  2955754