======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '183'
                                          'artist'  'MUCC'
                                     'text_people'  ''
                                         'release'  '6'
                                           'title'  '赤い空'
                                           '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-3', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['j-rock', 'japanese', 'visual kei', 'mucc', 'rock', 'jrock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock-visualkei'
                                             'bpm'  '145.267'
                                             'key'  '8A'
                                        'acoustid'  '5813975c-0a99-4c7b-b79a-bec270d96f19'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000225C 00001E82 00007AFB'
'COMM:iTunNORM:eng'                                 (' 0000225C 00001E82 00007AFB 000049C1 0001119E 000111B5 00008000 00008000 '
 '00009C40 00004E4E')
'TALB' (Album/Movie/Show title)                     '6'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock-visualkei']
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-04-26'
'TIT2' (Title/songname/content description)         '赤い空'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'MUCC'
'TPE2' (Band/orchestra/accompaniment)               'MUCC'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Island/朱'
'TRCK' (Track number/Position in set)               '3/9'
'TSO2'                                              'MUCC'
'TSOP' (Performer sort order)                       'MUCC'
'TSRC' (ISRC (international standard recording code))  'JPPO00607540'
'TXXX:ASIN'                                         'B000EMH9KI'
'TXXX:Acoustid Id'                                  '5813975c-0a99-4c7b-b79a-bec270d96f19'
'TXXX:Artists'                                      'MUCC'
'TXXX:BARCODE'                                      '4988005425614'
'TXXX:CATALOGNUMBER'                                'UPCI-1044'
'TXXX:MusicBrainz Album Artist Id'                  '0da0f48c-3689-4c38-bf4a-c5b50d516689'
'TXXX:MusicBrainz Album Id'                         '6cbaf4a6-8ca4-4f0b-ba2e-3be7eed29f6a'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '0da0f48c-3689-4c38-bf4a-c5b50d516689'
'TXXX:MusicBrainz Release Group Id'                 '794baac2-93a5-32d6-a15e-a0099ea5a8f0'
'TXXX:MusicBrainz Release Track Id'                 '43a8b874-323a-3651-849e-6a5588f7675a'
'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'                                       'Jpan'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['j-rock', 'japanese', 'visual kei', 'mucc', 'rock', 'jrock']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.84 dB'
'TXXX:replaygain_track_peak'                        '0.355426'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e9cd05ec-b112-41b2-b66a-0fcebc61f72c')

========================== row from database ==========================
                                              'id'  1494496
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/ムック/6/03 Akai sora.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  183
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock-visualkei
                                        'filesize'  4406481
                                           'mtime'  1637019995
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia ムック 03 Akai sora loc asia japan;loc asia japan jrock visualkei
                                      'tag_artist'  MUCC
                                     'tag_release'  6
                                       'tag_title'  赤い空
                                             'bpm'  145.267
                                    'search_title'  '赤i空':2 '赤い空':1
                                   'search_artist'  'mucc':1
                                  'search_release'  '6':1
                                     'search_rest'  '00asia':1 'akai':4 'asia':7 'japan':8,10,12 'jrock':13 'loc':6,9,11 'mutuku':3 'sora':5 'visualkei':14 'ムック':2
                                    'search_combo'  '00asia':5 '6':4C 'akai':8 'asia':11 'japan':12,14,16 'jrock':17 'loc':10,13,15 'mucc':3B 'mutuku':7 'sora':9 'visualkei':18 'ムック':6 '赤i空':2A '赤い空':1A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['j-rock', 'japanese', 'visual kei', 'mucc', 'rock', 'jrock']
                                        'tag_date'  2006
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637019995.3671317  (2021-11-16 00:46:35)
                             'size'  4406481