======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Whigfield'
                                     'text_people'  ''
                                         'release'  'III'
                                           'title'  'Doo Whop (Abm)'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '128.1'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153)
'PRIV:www.mexp.dk:\x01\x06\x00\x00\x00\x0090-99\x01\x07\x00\x00\x00\x00active'  PRIV(owner='www.mexp.dk', data=b'\x01\x06\x00\x00\x00\x0090-99\x01\x07\x00\x00\x00\x00active')
'TALB' (Album/Movie/Show title)                     'III'
'TBPM' (BPM (beats per minute))                     '128.1'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Doo Whop (Abm)'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Whigfield'
'TRCK' (Track number/Position in set)               '11'
'TXXX:MusicBrainz Album Id'                         'dd469159-7513-4c91-9d64-5b6ba5bb2fc4'
'TXXX:MusicBrainz TRM Id'                           '91cca4b6-96e4-44a1-a6f7-11362cfd79c2'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'87f28afd-7839-44e2-91b1-ecb9070a8212')

========================== row from database ==========================
                                              'id'  1538556
                                            'path'  /data/Music/Other/PrevSet/[8ohdear]/Whigfield/Doo Whop (Abm).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  
                                        'filesize'  4931584
                                           'mtime'  1662800524
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [8ohdear]
                                      'tag_artist'  Whigfield
                                     'tag_release'  III
                                       'tag_title'  Doo Whop (Abm)
                                             'bpm'  128.1
                                    'search_title'  'abm':3,4 'doo':1 'whop':2
                                   'search_artist'  'whigfield':1
                                  'search_release'  'iii':1
                                     'search_rest'  '8ohdear':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '8ohdear':8,9 'abm':3A,4A 'doo':1A 'iii':6C 'prev':10 'prevset':7 'set':11 'whigfield':5B 'whop':2A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800524.4296846  (2022-09-10 11:02:04)
                             'size'  4931584