======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '269'
                                          'artist'  'Gregorian'
                                     'text_people'  'Steve Lukather'
                                         'release'  'Masters Of Chant III'
                                           'title'  'Fields Of Gold'
                                           'quals'  "['q-bass-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'Pop'
                                             'bpm'  '123.3'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'http://canna.c4.to'
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'PRIV:WM/WMCollectionID:Ó\x15\x8eÂ\x98ÔáE³r\x9cÒlP\x85\x00'  PRIV(owner='WM/WMCollectionID', data=b'\xd3\x15\x8e\xc2\x98\xd4\xe1E\xb3r\x9c\xd2lP\x85\x00')
'PRIV:WM/WMContentID:w[`@Îvq@\x93%t\x8b:Ö`]'        PRIV(owner='WM/WMContentID', data=b'w[`@\xcevq@\x93%t\x8b:\xd6`]')
'TALB' (Album/Movie/Show title)                     'Masters Of Chant III'
'TBPM' (BPM (beats per minute))                     '123.3'
'TCOM' (Composer)                                   'Steve Lukather'
'TCON' (Content type, a.k.a. Genre)                 'Pop'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Fields Of Gold'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gregorian'
'TPE2' (Band/orchestra/accompaniment)               'Gregorian'
'TRCK' (Track number/Position in set)               '8'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'

========================== row from database ==========================
                                              'id'  1538800
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Gregorian/Fields of Gold.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  269
                                           'genre'  Pop
                                        'filesize'  6467917
                                           'mtime'  1662800560
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] of Pop
                                      'tag_artist'  Gregorian
                                     'tag_release'  Masters Of Chant III
                                       'tag_title'  Fields Of Gold
                                             'bpm'  123.3
                                    'search_title'  'fields':1 'gold':3 'of':2
                                   'search_artist'  'gregorian':1
                                  'search_release'  'chant':3 'iii':4 'masters':1 'of':2
                                     'search_rest'  '9amusing':2,3 'of':4 'pop':5 'prev':6 'prevset':1 'set':7
                                    'search_combo'  '9amusing':10,11 'chant':7C 'fields':1A 'gold':3A 'gregorian':4B 'iii':8C 'masters':5C 'of':2A,6C,12 'pop':13 'prev':14 'prevset':9 'set':15
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['q-bass-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800559.5725503  (2022-09-10 11:02:39)
                             'size'  6467917