======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '181'
                                          'artist'  'They Might Be Giants'
                                     'text_people'  ''
                                         'release'  'Severe Tire Damage'
                                           'title'  'Doctor Worm'
                                           'quals'  "['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'Indie'
                                             'bpm'  '107.8'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=204)
'TALB' (Album/Movie/Show title)                     'Severe Tire Damage'
'TBPM' (BPM (beats per minute))                     '107.8'
'TCON' (Content type, a.k.a. Genre)                 'Indie'
'TDOR' (Original release time)                      '1998'
'TIT2' (Title/songname/content description)         'Doctor Worm'
'TKEY' (Initial key)                                '2B'
'TLEN' (Length)                                     '181577'
'TPE1' (Lead performer(s)/Soloist(s))               'They Might Be Giants'
'TRCK' (Track number/Position in set)               '1'
'TXXX:MusicBrainz Album Id'                         '6b486b30-6dc7-4420-83b3-bb920e18fa94'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'live'
'TXXX:MusicBrainz Artist Id'                        '183d6ef6-e161-47ff-9085-063c8b897e97'
'TXXX:MusicBrainz TRM Id'                           '02be4bcd-8ffd-4acc-9291-3dfc6316d8b4'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c1bca08e-9b72-4d72-abe7-43091da8a4c0')

========================== row from database ==========================
                                              'id'  1538621
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/They Might Be Giants/Doctor Worm.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  Indie
                                        'filesize'  2907584
                                           'mtime'  1662800547
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Indie
                                      'tag_artist'  They Might Be Giants
                                     'tag_release'  Severe Tire Damage
                                       'tag_title'  Doctor Worm
                                             'bpm'  107.8
                                    'search_title'  'doctor':1 'worm':2
                                   'search_artist'  'be':3 'giants':4 'might':2 'they':1
                                  'search_release'  'damage':3 'severe':1 'tire':2
                                     'search_rest'  '9amusing':2,3 'indie':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '9amusing':11,12 'be':5B 'damage':9C 'doctor':1A 'giants':6B 'indie':13 'might':4B 'prev':14 'prevset':10 'set':15 'severe':7C 'they':3B 'tire':8C 'worm':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800547.4289422  (2022-09-10 11:02:27)
                             'size'  2907584