======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '198'
                                          'artist'  'Yo-Yo Ma'
                                     'text_people'  ''
                                         'release'  'Japanese Melodies'
                                           'title'  'Oroku-Musume'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'baroque', 'cello', 'classical']"
                                     'discogstags'  "['classical', 'baroque']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '10'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '134.288'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000132 00000196 000006E2'
'COMM:iTunNORM:eng'                                 (' 00000132 00000196 000006E2 00000E08 0002983E 0002983E 00003CA3 0000442C '
 '00024A35 0002983E')
'TALB' (Album/Movie/Show title)                     'Japanese Melodies'
'TBPM' (BPM (beats per minute))                     '134.288'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '1985'
'TDRC' (Recording time)                             '1985-06-25'
'TIT2' (Title/songname/content description)         'Oroku-Musume'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Yo-Yo Ma'
'TPE2' (Band/orchestra/accompaniment)               'Yo-Yo Ma'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'CBS'
'TRCK' (Track number/Position in set)               '8/10'
'TSO2'                                              'Ma, Yo-Yo'
'TSOP' (Performer sort order)                       'Ma, Yo-Yo'
'TXXX:ASIN'                                         'B000002628'
'TXXX:BARCODE'                                      '07464397032'
'TXXX:CATALOGNUMBER'                                'MK 39703'
'TXXX:MusicBrainz Album Artist Id'                  '62fe877d-b7a5-43e8-952e-2610d7614bff'
'TXXX:MusicBrainz Album Id'                         'ebd78582-9a5a-4c71-95ba-99c92c9f1b45'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '62fe877d-b7a5-43e8-952e-2610d7614bff'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['classical', 'baroque']
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'baroque', 'cello', 'classical']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.84 dB'
'TXXX:replaygain_track_peak'                        '1.092088'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fc56896f-cc8f-46d5-bab9-99ffcbd7a72f')

========================== row from database ==========================
                                              'id'  1208130
                                            'path'  /data/Music/Bulk/00instruments-classical/yo-yo ma japanese melodies/yo-yo ma - japanese melodies - 08 - oroku-musume.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  198
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  3966374
                                           'mtime'  1620561919
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical yo yo ma japanese melodies yo yo ma japanese melodies 08 oroku musume prerock classical or classical instruments
                                      'tag_artist'  Yo-Yo Ma
                                     'tag_release'  Japanese Melodies
                                       'tag_title'  Oroku-Musume
                                             'bpm'  134.288
                                    'search_title'  'musume':2 'oroku':1 'orokumusume':3
                                   'search_artist'  'ma':4 'yo':1,2 'yoyo':3
                                  'search_release'  'japanese':1 'melodies':2
                                     'search_rest'  '00instruments':1 'classical':2 'instruments':11 'japanese':5 'ma':4 'melodies':6 'musume':8 'or':10 'oroku':7 'prerock':9 'yo':3
                                    'search_combo'  '00instruments':10 'classical':11 'instruments':20 'japanese':8C,14 'ma':7B,13 'melodies':9C,15 'musume':2A,17 'or':19 'oroku':1A,16 'orokumusume':3A 'prerock':18 'yo':4B,5B,12 'yoyo':6B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'baroque', 'cello', 'classical']
                                        'tag_date'  1985
                                     'discogstags'  ['classical', 'baroque']

============================== file details ==============================
                                           'mtime'  1620561919.4758754  (2021-05-09 14:05:19)
                             'size'  3966374