======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '133'
                                          'artist'  'liquore da dessert'
                                     'text_people'  ''
                                         'release'  'non conforme 14'
                                           'title'  'megamix x-x-6'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '100.3'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'non conforme 14'
'TBPM' (BPM (beats per minute))                     '100.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'AltoMP3 Maker'
'TIT2' (Title/songname/content description)         'megamix x-x-6'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'liquore da dessert'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.484131'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.YuanSoft.com')

========================== row from database ==========================
                                              'id'  1475786
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - non conforme 14/28-liquore da dessert -- megamix xx 6.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  133
                                           'genre'  loc-eur-france
                                        'filesize'  3207045
                                           'mtime'  1620533571
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va 28 xx loc eur france
                                      'tag_artist'  liquore da dessert
                                     'tag_release'  non conforme 14
                                       'tag_title'  megamix x-x-6
                                             'bpm'  100.3
                                    'search_title'  '6':4 'megamix':1 'x':2,3 'xx6':5
                                   'search_artist'  'da':2 'dessert':3 'liquore':1
                                  'search_release'  'conforme':2 'non':1
                                     'search_rest'  '28':2 'eur':5 'france':6 'loc':4 'va':1 'xx':3
                                    'search_combo'  '28':12 '6':4A 'conforme':10C 'da':7B 'dessert':8B 'eur':15 'france':16 'liquore':6B 'loc':14 'megamix':1A 'non':9C 'va':11 'x':2A,3A 'xx':13 'xx6':5A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533571.2019095  (2021-05-09 06:12:51)
                             'size'  3207045