======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '432'
                                          'artist'  'Queensrÿche'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Someone Else? (bonus track/with full band)'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metal', 'hard rock', 'progressive rock', 'progressive metal', 'heavy metal']"
                                     'discogstags'  "['rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '125.5'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '125.5'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Someone Else? (bonus track/with full band)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Queensrÿche'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'heavy metal']
'TXXX:lastfmtags'                                   ['metal', 'hard rock', 'progressive rock', 'progressive metal', 'heavy metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.373556'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='www.grupoemusica.com')

========================== row from database ==========================
                                              'id'  1399952
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Queensrÿche.-.Greatest Hits.(2000).mp3.320k.euskalmetal.[www.grupoemusica.com]/16. Someone Else (bonus trackwith full band).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  432
                                           'genre'  eid-metal
                                        'filesize'  17321218
                                           'mtime'  1636301013
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Queensrÿche. .Greatest Hits.(2000).mp3.320k.euskalmetal.[www.grupoemusica.com] 16. trackwith eid metal
                                      'tag_artist'  Queensrÿche
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Someone Else? (bonus track/with full band)
                                             'bpm'  125.5
                                    'search_title'  'band':9,10 'bonus':3,4 'else':2 'full':8 'someone':1 'track':5 'trackwith':7 'with':6
                                   'search_artist'  'queensryche':1,2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '16':18,19 '2000':10 '320k':12 'com':16 'eid':21 'euskalmetal':13 'greatest':7,8 'grupoemusica':15 'hits':9 'hits2000mp3320keuskalmetalwwwgrupoemusicacom':17 'metal':22 'mp3':11 'queensryche':3,4,5,6 'trackwith':20 'www':14
                                    'search_combo'  '00dwimp':15 '00metal':16 '16':32,33 '2000':24 '320k':26 'band':9A,10A 'bonus':3A,4A 'com':30 'eid':35 'else':2A 'euskalmetal':27 'full':8A 'greatest':13C,21,22 'grupoemusica':29 'hits':14C,23 'hits2000mp3320keuskalmetalwwwgrupoemusicacom':31 'metal':36 'mp3':25 'queensryche':11B,12B,17,18,19,20 'someone':1A 'track':5A 'trackwith':7A,34 'with':6A 'www':28
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['metal', 'hard rock', 'progressive rock', 'progressive metal', 'heavy metal']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1636301012.8232183  (2021-11-07 17:03:32)
                             'size'  17321218