======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '252'
                                          'artist'  'Yo-Yo Ma'
                                     'text_people'  ''
                                         'release'  'Japanese Melodies'
                                           'title'  'Chugoku-Chiho-No-Komoriuta'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', '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'  '9'
                                      'tracktotal'  '10'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '136.643'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000007C 00000080 000002CA'
'COMM:iTunNORM:eng'                                 (' 0000007C 00000080 000002CA 000002ED 000186B7 00011187 0000200E 0000217B '
 '00027145 00011187')
'TALB' (Album/Movie/Show title)                     'Japanese Melodies'
'TBPM' (BPM (beats per minute))                     '136.643'
'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)         'Chugoku-Chiho-No-Komoriuta'
'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)               '9/10'
'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'                                       '1'
'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'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.768203'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'305c3524-54cb-40f3-9916-8f3966ad0e0c')

========================== row from database ==========================
                                              'id'  1208134
                                            'path'  /data/Music/Bulk/00instruments-classical/yo-yo ma japanese melodies/yo-yo ma - japanese melodies - 09 - chugoki-chiho-no-komoriu.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  252
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  5045761
                                           'mtime'  1620561920
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical yo yo ma japanese melodies yo yo ma japanese melodies 09 chugoki chiho no komoriu prerock classical classical instruments
                                      'tag_artist'  Yo-Yo Ma
                                     'tag_release'  Japanese Melodies
                                       'tag_title'  Chugoku-Chiho-No-Komoriuta
                                             'bpm'  136.643
                                    'search_title'  'chiho':2 'chugoku':1 'chugokuchihonokomoriuta':5 'komoriuta':4 'no':3
                                   'search_artist'  'ma':4 'yo':1,2 'yoyo':3
                                  'search_release'  'japanese':1 'melodies':2
                                     'search_rest'  '00instruments':1 'chiho':8 'chugoki':7 'classical':2 'instruments':12 'japanese':5 'komoriu':10 'ma':4 'melodies':6 'no':9 'prerock':11 'yo':3
                                    'search_combo'  '00instruments':12 'chiho':2A,19 'chugoki':18 'chugoku':1A 'chugokuchihonokomoriuta':5A 'classical':13 'instruments':23 'japanese':10C,16 'komoriu':21 'komoriuta':4A 'ma':9B,15 'melodies':11C,17 'no':3A,20 'prerock':22 'yo':6B,7B,14 'yoyo':8B
                                    'tag_tracknum'  9
                                      '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-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'baroque', 'cello', 'classical']
                                        'tag_date'  1985
                                     'discogstags'  ['classical', 'baroque']

============================== file details ==============================
                                           'mtime'  1620561919.5525608  (2021-05-09 14:05:19)
                             'size'  5045761