======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '308'
                                          'artist'  'downy'
                                     'text_people'  ''
                                         'release'  'Tsuki Yadoru Zenryou'
                                           'title'  'Saru no Tegara'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative', 'indie', 'shoegaze', 'post rock', 'japanese']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '3'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '99.812'
                                             'key'  '4B'
                                        'acoustid'  '5cd4f5ee-3330-41a9-873f-3e511f2cb087'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00001906 000016E7 000040EA'
'COMM:iTunNORM:eng'                                 (' 00001906 000016E7 000040EA 000041F6 0003A9C5 0002BF4E 000077BB 00006FDE '
 '0000273E 0001ADC7')
'TALB' (Album/Movie/Show title)                     'Tsuki Yadoru Zenryou'
'TBPM' (BPM (beats per minute))                     '99.812'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2001-05-23'
'TIT2' (Title/songname/content description)         'Saru no Tegara'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'downy'
'TPE2' (Band/orchestra/accompaniment)               'downy'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/3'
'TSO2'                                              'downy'
'TSOP' (Performer sort order)                       'downy'
'TXXX:Acoustid Id'                                  '5cd4f5ee-3330-41a9-873f-3e511f2cb087'
'TXXX:Artists'                                      'downy'
'TXXX:BARCODE'                                      '4543105230010'
'TXXX:CATALOGNUMBER'                                'FICA-3001'
'TXXX:MusicBrainz Album Artist Id'                  'f2bec217-8b84-42d4-9395-1421f1fa8a51'
'TXXX:MusicBrainz Album Id'                         'a421bff5-008e-450d-92cc-980ea55da75e'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'pseudo-release'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        'f2bec217-8b84-42d4-9395-1421f1fa8a51'
'TXXX:MusicBrainz Release Group Id'                 '41cb9ad5-1842-34bb-bc0d-3bdb7c5430b0'
'TXXX:MusicBrainz Release Track Id'                 '3a16f7a0-8bf1-3b47-b3c4-96ecc121e9b8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative', 'indie', 'shoegaze', 'post rock', 'japanese']
'TXXX:originalyear'                                 '2000'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.408051'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8cfd7d7a-9701-4aec-a7d4-705b37662809')

========================== row from database ==========================
                                              'id'  423939
                                            'path'  /data/Music/Bulk/00localcharacter/downy/[2000] 月宿る善良 [single]/02 猿の手柄.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  308
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  4953663
                                           'mtime'  1637330179
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2000] 月宿る善良 [single] 02 猿の手柄 loc asia japan;loc asia japan jrock
                                      'tag_artist'  downy
                                     'tag_release'  Tsuki Yadoru Zenryou
                                       'tag_title'  Saru no Tegara
                                             'bpm'  99.812
                                    'search_title'  'no':2 'saru':1 'tegara':3
                                   'search_artist'  'downy':1
                                  'search_release'  'tsuki':1 'yadoru':2 'zenryou':3
                                     'search_rest'  '2000':1,2 'asia':10 'japan':11,13,15 'jrock':16 'loc':9,12,14 'single':5,6 '月宿ru善良':4 '月宿る善良':3 '猿no手柄':8 '猿の手柄':7
                                    'search_combo'  '2000':8,9 'asia':17 'downy':4B 'japan':18,20,22 'jrock':23 'loc':16,19,21 'no':2A 'saru':1A 'single':12,13 'tegara':3A 'tsuki':5C 'yadoru':6C 'zenryou':7C '月宿ru善良':11 '月宿る善良':10 '猿no手柄':15 '猿の手柄':14
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'indie', 'shoegaze', 'post rock', 'japanese']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330178.629357  (2021-11-19 14:56:18)
                             'size'  4953663