======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '334'
                                          'artist'  'BoA'
                                     'text_people'  ''
                                         'release'  'BEST OF SOUL'
                                           'title'  'メリクリ'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['korean', 'pop', 'j pop', 'k pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '16'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop'
                                             'bpm'  '81'
                                             'key'  '4B'
                                        'acoustid'  'b750f62f-033f-4880-a9fe-76d69050ca2f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'BEST OF SOUL'
'TBPM' (BPM (beats per minute))                     '81'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop']
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-02-02'
'TIT2' (Title/songname/content description)         'メリクリ'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'BoA'
'TPE2' (Band/orchestra/accompaniment)               'BoA'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'avex trax'
'TRCK' (Track number/Position in set)               '15/16'
'TSO2'                                              'BoA'
'TSOP' (Performer sort order)                       'BoA'
'TXXX:ASIN'                                         'B0006ZJBCM'
'TXXX:Acoustid Id'                                  'b750f62f-033f-4880-a9fe-76d69050ca2f'
'TXXX:Artists'                                      'BoA'
'TXXX:BARCODE'                                      '4988064176090'
'TXXX:CATALOGNUMBER'                                'AVCD-17609'
'TXXX:MusicBrainz Album Artist Id'                  'a16d1433-ba89-4f72-a47b-a370add0bb55'
'TXXX:MusicBrainz Album Id'                         'ec476124-2420-3f54-8505-93b12594caf2'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'a16d1433-ba89-4f72-a47b-a370add0bb55'
'TXXX:MusicBrainz Release Group Id'                 'f1f17b67-647f-335c-8766-58ac98e2700a'
'TXXX:MusicBrainz Release Track Id'                 'fd849ddc-363a-36e4-8e15-3c79ec83b836'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Jpan'
'TXXX:lastfmtags'                                   ['korean', 'pop', 'j pop', 'k pop']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.528313'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b469725a-cced-4028-ade4-4ba4c1b8a6be')

========================== row from database ==========================
                                              'id'  935844
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/BoA/BOA/15 .mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  334
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop
                                        'filesize'  13460577
                                           'mtime'  1622756775
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia BOA 15 loc asia japan;loc asia japan jpop
                                      'tag_artist'  BoA
                                     'tag_release'  BEST OF SOUL
                                       'tag_title'  メリクリ
                                             'bpm'  81.0
                                    'search_title'  'merikuri':2 'メリクリ':1
                                   'search_artist'  'a':3 'bo':2 'boa':1
                                  'search_release'  'best':1 'of':2 'soul':3
                                     'search_rest'  '00asia':1 'asia':4 'boa':2 'japan':5,7,9 'jpop':10 'loc':3,6,8
                                    'search_combo'  '00asia':9 'a':5B 'asia':12 'best':6C 'bo':4B 'boa':3B,10 'japan':13,15,17 'jpop':18 'loc':11,14,16 'merikuri':2A 'of':7C 'soul':8C 'メリクリ':1A
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['korean', 'pop', 'j pop', 'k pop']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622756775.075069  (2021-06-03 23:46:15)
                             'size'  13460577