======================== unified (from filesystem) ========================
                                         'bitrate'  '184.483'
                                        'duration'  '421'
                                          'artist'  'Tom Waits'
                                     'text_people'  ''
                                         'release'  'Nighthawks at the Diner'
                                           'title'  'Better Off Without a Wife'
                                           'quals'  "['q-bass-2', 'q-drums-1', 'q-other-1', 'q-piano-3', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'Rock'
                                             'bpm'  '124.1'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=204)
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:www.mexp.dk:\x01\x0b\x00\x00\x00\x00good stuff'  PRIV(owner='www.mexp.dk', data=b'\x01\x0b\x00\x00\x00\x00good stuff')
'TALB' (Album/Movie/Show title)                     'Nighthawks at the Diner'
'TBPM' (BPM (beats per minute))                     '124.1'
'TCON' (Content type, a.k.a. Genre)                 'Rock'
'TDOR' (Original release time)                      '1975'
'TIT2' (Title/songname/content description)         'Better Off Without a Wife'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TRCK' (Track number/Position in set)               '8'
'TXXX:MusicBrainz Album Id'                         '8ee75e8f-0bde-4ea6-9146-81bbfd1bda5d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c3aeb863-7b26-4388-94e8-5a240f2be21b'
'TXXX:MusicBrainz TRM Id'                           '34258e78-6c6a-4680-a881-dcf73514d79b'
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6e2e59af-c41a-4624-a4c5-52f60ea0f78b')

========================== row from database ==========================
                                              'id'  1538567
                                            'path'  /data/Music/Other/PrevSet/[6calmer]/Tom Waits/Better Off Without a Wife.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  421
                                           'genre'  Rock
                                        'filesize'  9711790
                                           'mtime'  1662800467
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [6calmer] Rock
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Nighthawks at the Diner
                                       'tag_title'  Better Off Without a Wife
                                             'bpm'  124.1
                                    'search_title'  'a':4 'better':1 'off':2 'wife':5 'without':3
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'at':2 'diner':4 'nighthawks':1 'the':3
                                     'search_rest'  '6calmer':2,3 'prev':5 'prevset':1 'rock':4 'set':6
                                    'search_combo'  '6calmer':13,14 'a':4A 'at':9C 'better':1A 'diner':11C 'nighthawks':8C 'off':2A 'prev':16 'prevset':12 'rock':15 'set':17 'the':10C 'tom':6B 'waits':7B 'wife':5A 'without':3A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['q-bass-2', 'q-drums-1', 'q-other-1', 'q-piano-3', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800466.8195443  (2022-09-10 11:01:06)
                             'size'  9711790