======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '224'
                                          'artist'  'Zhao Yuzhai'
                                     'text_people'  ''
                                         'release'  'Chine: Musique classique'
                                           'title'  "La lune d'automne dans le palais des han (Hangong qiu yue)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'guzheng', 'wood and string', 'chinese']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-china'
                                             'bpm'  '84.491'
                                             'key'  '5A'
                                        'acoustid'  'f78e56b4-cfe4-4699-ae2a-af9960a5ecf0'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Chine: Musique classique'
'TBPM' (BPM (beats per minute))                     '84.491'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-china'
'TDOR' (Original release time)                      '1988'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "La lune d'automne dans le palais des han (Hangong qiu yue)"
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Zhao Yuzhai'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Ocora'
'TRCK' (Track number/Position in set)               '3/17'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Zhao, Yuzhai'
'TXXX:Acoustid Id'                                  'f78e56b4-cfe4-4699-ae2a-af9960a5ecf0'
'TXXX:Artists'                                      'Zhao Yuzhai'
'TXXX:BARCODE'                                      '794881648221'
'TXXX:CATALOGNUMBER'                                'C 582039'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'be731ccb-cd65-43e5-a0f7-dac8aa4053c0'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '110f6d41-1cf8-4c99-9f8e-4a15f0e8eac0'
'TXXX:MusicBrainz Release Group Id'                 '6ec12338-58b2-4e39-b85d-52db863dd651'
'TXXX:MusicBrainz Release Track Id'                 '69bee30d-5d27-4cd6-beaa-ce1a61c8fe0d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['all', 'guzheng', 'wood and string', 'chinese']
'TXXX:originalyear'                                 '1988'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.98 dB'
'TXXX:replaygain_track_peak'                        '0.891869'
'TXXX:tracknum'                                     '03'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ff5bc9a6-5251-40e6-8856-283f22352a21')

========================== row from database ==========================
                                              'id'  1520862
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/CHINE - Musique Classique/03. Hangong qui yue - La Lune d_automne dans le palais des Han - Cithare à chevalets mobiles zheng - Zhao Yuzhai.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  224
                                           'genre'  loc-asia-china
                                        'filesize'  7302206
                                           'mtime'  1621626980
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia CHINE Classique 03. qui Lune d_automne Cithare à chevalets mobiles zheng loc asia china
                                      'tag_artist'  Zhao Yuzhai
                                     'tag_release'  Chine: Musique classique
                                       'tag_title'  La lune d'automne dans le palais des han (Hangong qiu yue)
                                             'bpm'  84.491
                                    'search_title'  'automne':4 'd':3 'dans':6 'dautomne':5 'des':9 'han':10 'hangong':11,12 'la':1 'le':7 'lune':2 'palais':8 'qiu':13 'yue':14,15
                                   'search_artist'  'yuzhai':2 'zhao':1
                                  'search_release'  'chine':1,2 'classique':4 'musique':3
                                     'search_rest'  '00asia':1 '03':4,5 'a':11,12 'asia':17 'automne':9 'chevalets':13 'china':18 'chine':2 'cithare':10 'classique':3 'd':8 'loc':16 'lune':7 'mobiles':14 'qui':6 'zheng':15
                                    'search_combo'  '00asia':22 '03':25,26 'a':32,33 'asia':38 'automne':4A,30 'chevalets':34 'china':39 'chine':18C,19C,23 'cithare':31 'classique':21C,24 'd':3A,29 'dans':6A 'dautomne':5A 'des':9A 'han':10A 'hangong':11A,12A 'la':1A 'le':7A 'loc':37 'lune':2A,28 'mobiles':35 'musique':20C 'palais':8A 'qiu':13A 'qui':27 'yue':14A,15A 'yuzhai':17B 'zhao':16B 'zheng':36
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['all', 'guzheng', 'wood and string', 'chinese']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626979.80783  (2021-05-21 21:56:19)
                             'size'  7302206