======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '268'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Chine: Musique classique'
                                           'title'  "Pétales neigant sur l'herbe (Fei hua dian cui)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-china'
                                             'bpm'  '143.925'
                                             'key'  '4B'
                                        'acoustid'  ''
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))                     '143.925'
'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)         "Pétales neigant sur l'herbe (Fei hua dian cui)"
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Ocora'
'TRCK' (Track number/Position in set)               '14/17'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       '[unknown]'
'TXXX:Artists'                                      '[unknown]'
'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'                        '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:MusicBrainz Release Group Id'                 '6ec12338-58b2-4e39-b85d-52db863dd651'
'TXXX:MusicBrainz Release Track Id'                 '6783bd59-2090-4533-b3ab-758ea867db3e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'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-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.46 dB'
'TXXX:replaygain_track_peak'                        '0.974209'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6a72b5f2-ca2b-4ff1-bcd5-2c506be10c8a')

========================== row from database ==========================
                                              'id'  1517818
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/CHINE - Musique Classique/14. Fei fua dian cui - Pétales neigeant sur l_herbe - Luth pipa - Sun Yude.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  268
                                           'genre'  loc-asia-china
                                        'filesize'  8706092
                                           'mtime'  1621626981
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia CHINE Classique 14. fua neigeant l_herbe Luth pipa Sun Yude loc asia china
                                      'tag_artist'  [unknown]
                                     'tag_release'  Chine: Musique classique
                                       'tag_title'  Pétales neigant sur l'herbe (Fei hua dian cui)
                                             'bpm'  143.925
                                    'search_title'  'cui':12,13 'dian':11 'fei':8,9 'herbe':6 'hua':10 'l':5 'lherbe':7 'neigant':3 'petales':1,2 'sur':4
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'chine':1,2 'classique':4 'musique':3
                                     'search_rest'  '00asia':1 '14':4,5 'asia':15 'china':16 'chine':2 'classique':3 'fua':6 'herbe':9 'l':8 'loc':14 'luth':10 'neigeant':7 'pipa':11 'sun':12 'yude':13
                                    'search_combo'  '00asia':20 '14':23,24 'asia':34 'china':35 'chine':16C,17C,21 'classique':19C,22 'cui':12A,13A 'dian':11A 'fei':8A,9A 'fua':25 'herbe':6A,28 'hua':10A 'l':5A,27 'lherbe':7A 'loc':33 'luth':29 'musique':18C 'neigant':3A 'neigeant':26 'petales':1A,2A 'pipa':30 'sun':31 'sur':4A 'unknown':14B,15B 'yude':32
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-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-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626980.742097  (2021-05-21 21:56:20)
                             'size'  8706092