======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '211'
                                          'artist'  'The Arrogant Worms'
                                     'text_people'  ''
                                         'release'  "C'est Cheese"
                                           'title'  'Kill the Dog Next Door'
                                           'quals'  "['q-bass-4', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'Comedy'
                                             'bpm'  '132.4'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=204)
'PRIV:www.mexp.dk:\x01\x06\x00\x00\x00\x0090-99\x01\x07\x00\x00\x00\x00active\x01\x06\x00\x00\x00\x00funny\x01\x05\x00\x00\x00\x00folk'  PRIV(owner='www.mexp.dk', data=b'\x01\x06\x00\x00\x00\x0090-99\x01\x07\x00\x00\x00\x00active\x01\x06\x00\x00\x00\x00funny\x01\x05\x00\x00\x00\x00folk')
'TALB' (Album/Movie/Show title)                     "C'est Cheese"
'TBPM' (BPM (beats per minute))                     '132.4'
'TCON' (Content type, a.k.a. Genre)                 'Comedy'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Kill the Dog Next Door'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Arrogant Worms'
'TRCK' (Track number/Position in set)               '2'
'TXXX:MusicBrainz Album Id'                         'cd98b708-cb1f-4328-8170-475679d2859b'
'TXXX:MusicBrainz Album Release Country'            'CA'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e18a07b6-2df5-47ca-a3fc-6dbd3a2ef8cc'
'TXXX:MusicBrainz TRM Id'                           '7ad71570-3913-4a71-8bd2-11971b47f0aa'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3ec02dc4-0b67-49a0-931a-6f2e1a0c5e77')
'UFID:musicbrainz'                                  UFID(owner='musicbrainz', data=b'3ec02dc4-0b67-49a0-931a-6f2e1a0c5e77')

========================== row from database ==========================
                                              'id'  1538478
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/The Arrogant Worms/Kill the Dog Next Door.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  211
                                           'genre'  Comedy
                                        'filesize'  5079040
                                           'mtime'  1662800559
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Comedy
                                      'tag_artist'  The Arrogant Worms
                                     'tag_release'  C'est Cheese
                                       'tag_title'  Kill the Dog Next Door
                                             'bpm'  132.4
                                    'search_title'  'dog':3 'door':5 'kill':1 'next':4 'the':2
                                   'search_artist'  'arrogant':2 'the':1 'worms':3
                                  'search_release'  'c':1 'cest':3 'cheese':4 'est':2
                                     'search_rest'  '9amusing':2,3 'comedy':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '9amusing':14,15 'arrogant':7B 'c':9C 'cest':11C 'cheese':12C 'comedy':16 'dog':3A 'door':5A 'est':10C 'kill':1A 'next':4A 'prev':17 'prevset':13 'set':18 'the':2A,6B 'worms':8B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['q-bass-4', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800559.0725665  (2022-09-10 11:02:39)
                             'size'  5079040