======================== unified (from filesystem) ========================
                                         'bitrate'  '128.005'
                                        'duration'  '189'
                                          'artist'  '"Weird Al" Yankovic'
                                     'text_people'  ''
                                         'release'  'Polka Party!'
                                           'title'  'Christmas at Ground Zero'
                                           'quals'  "['q-bass-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'Comedy'
                                             'bpm'  '145.6'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'ogg had 128 kbps 44100 Hz'
'TALB' (Album/Movie/Show title)                     'Polka Party!'
'TBPM' (BPM (beats per minute))                     '145.6'
'TCON' (Content type, a.k.a. Genre)                 'Comedy'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Christmas at Ground Zero'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               '"Weird Al" Yankovic'
'TRCK' (Track number/Position in set)               '10'
'TXXX:MusicBrainz Album Id'                         'afed45dd-a7e7-47f8-8826-899ad57ee53f'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7746d775-9550-4360-b8d5-c37bd448ce01'
'TXXX:MusicBrainz TRM Id'                           '9a40c658-c731-4d29-a759-1b7ce0b225f4'
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'efac4f94-91eb-4053-b16c-934609f57c71')

========================== row from database ==========================
                                              'id'  1538168
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Weird Al Yankovic/Christmas at Ground Zero.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  189
                                           'genre'  Comedy
                                        'filesize'  3026381
                                           'mtime'  1662800594
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Comedy
                                      'tag_artist'  "Weird Al" Yankovic
                                     'tag_release'  Polka Party!
                                       'tag_title'  Christmas at Ground Zero
                                             'bpm'  145.6
                                    'search_title'  'at':2 'christmas':1 'ground':3 'zero':4
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'party':2 'polka':1
                                     'search_rest'  '9amusing':2,3 'comedy':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '9amusing':11,12 'al':6B 'at':2A 'christmas':1A 'comedy':13 'ground':3A 'party':9C 'polka':8C 'prev':14 'prevset':10 'set':15 'weird':5B 'yankovic':7B 'zero':4A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['q-bass-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800593.65945  (2022-09-10 11:03:13)
                             'size'  3026381