======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '186'
                                          'artist'  'Liesbeth List'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mijn kleine bootje'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-1', '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-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'  '142.7'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Mijn kleine bootje'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Liesbeth List'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEAAAAAg6nX27uahIWk0EIdnOWGP4HQC+qfiyD3gM3G5IABkannK6uvgAGyWYABgj2kk8JuHffQQ4ABgAHWgRSZ9VKAAaumgAKAAZY4oJPWtIQp6d9DpJAXgcCHO/Pnm6Qs7IJ22DGdQ4XkALyvk5RN032MPYWTgAHBEcLm6eCrGoABugEBA/54n1ms8oACgAE='
'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'                                       '1'
'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'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.393173'

========================== row from database ==========================
                                              'id'  1495544
                                            'path'  /data/Music/Other/Pa/Nederlands/Liesbeth List/Mijn kleine bootje.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  186
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3734745
                                           'mtime'  1621630401
                                   'redo_metaread'  0
                                        'rest_str'   Pa Nederlands loc eur netherlands
                                      'tag_artist'  Liesbeth List
                                     'tag_release'  None
                                       'tag_title'  Mijn kleine bootje
                                             'bpm'  142.7
                                    'search_title'  'bootje':3 'kleine':2 'mijn':1
                                   'search_artist'  'liesbeth':1 'list':2
                                  'search_release'  
                                     'search_rest'  'eur':4 'loc':3 'nederlands':2 'netherlands':5 'pa':1
                                    'search_combo'  'bootje':3A 'eur':9 'kleine':2A 'liesbeth':4B 'list':5B 'loc':8 'mijn':1A 'nederlands':7 'netherlands':10 'pa':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3B
                                           '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-3', 'Q-HAP-3', 'Q-PLAY-1', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630400.7614462  (2021-05-21 22:53:20)
                             'size'  3734745