======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '144'
                                          'artist'  'Lunachicks'
                                     'text_people'  ''
                                         'release'  'Pretty Ugly'
                                           'title'  'Mmm Donuts'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'Rock'
                                             'bpm'  '124.1'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     'Pretty Ugly'
'TBPM' (BPM (beats per minute))                     '124.1'
'TCON' (Content type, a.k.a. Genre)                 'Rock'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Mmm Donuts'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lunachicks'
'TRCK' (Track number/Position in set)               '13'
'TXXX:MusicBrainz Album Id'                         '674a8863-21ca-46d9-86d7-b714c1802bc3'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Artist Id'                        '0639533a-0402-40ba-b6e0-18b067198b73'
'TXXX:MusicBrainz TRM Id'                           '5e883467-852c-4c3f-af93-c8ec1dc8a9ac'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a357d169-78e8-4db1-af68-5b19925e3b6f')

========================== row from database ==========================
                                              'id'  1538593
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Lunachicks - Mmm Donuts.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  144
                                           'genre'  Rock
                                        'filesize'  3477979
                                           'mtime'  1662800553
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Rock
                                      'tag_artist'  Lunachicks
                                     'tag_release'  Pretty Ugly
                                       'tag_title'  Mmm Donuts
                                             'bpm'  124.1
                                    'search_title'  'donuts':2 'mmm':1
                                   'search_artist'  'lunachicks':1
                                  'search_release'  'pretty':1 'ugly':2
                                     'search_rest'  '9amusing':2,3 'prev':5 'prevset':1 'rock':4 'set':6
                                    'search_combo'  '9amusing':7,8 'donuts':2A 'lunachicks':3B 'mmm':1A 'pretty':4C 'prev':10 'prevset':6 'rock':9 'set':11 'ugly':5C
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800552.6327744  (2022-09-10 11:02:32)
                             'size'  3477979