======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '41'
                                          'artist'  'Boredoms'
                                     'text_people'  ''
                                         'release'  'Pop Tatari'
                                           'title'  'Greatboreful Dead'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['noise', 'japanese', 'experimental', 'avant garde', 'psychedelic', 'noise "
 "rock']")
                                     'discogstags'  "['rock', 'noise', 'psychedelic rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '18'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;set-pl-sced'
                                             'bpm'  '123'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:CDDB Disc ID:XXX'                             'F90FCB12'
'COMM:ID3v1 Comment:XXX'                            'F90FCB12'
'COMM:iTunNORM:eng'                                 (' 00000133 0000016C 000005AC 00000675 0000915A 000070FB 000032D3 000033BA '
 '0000915A 00007112')
'TALB' (Album/Movie/Show title)                     'Pop Tatari'
'TBPM' (BPM (beats per minute))                     '123'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'set-pl-sced']
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1992-09-25'
'TIT2' (Title/songname/content description)         'Greatboreful Dead'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Boredoms'
'TPE2' (Band/orchestra/accompaniment)               'Boredoms'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'wea'
'TRCK' (Track number/Position in set)               '18/18'
'TSO2'                                              'Boredoms'
'TSOP' (Performer sort order)                       'Boredoms'
'TSRC' (ISRC (international standard recording code))  'JPWM09201400'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.85, 256 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Artists'                                      'Boredoms'
'TXXX:BARCODE'                                      '4988053100242'
'TXXX:CATALOGNUMBER'                                'WMC3-24'
'TXXX:MusicBrainz Album Artist Id'                  '0798d15b-64e2-499f-9969-70167b1d8617'
'TXXX:MusicBrainz Album Id'                         'c535816f-8328-4b6e-8d28-e3de73fa75f7'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '0798d15b-64e2-499f-9969-70167b1d8617'
'TXXX:MusicBrainz Release Group Id'                 'c5576f12-adaf-3dca-8807-e5dd07078b96'
'TXXX:MusicBrainz Release Track Id'                 'b63c11f6-09bd-3ea7-881d-5b34c8f86a68'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'noise', 'psychedelic rock', 'prog rock']
'TXXX:lastfmtags'                                   ['noise',
 'japanese',
 'experimental',
 'avant garde',
 'psychedelic',
 'noise rock']
'TXXX:originalyear'                                 '1992'
'TXXX:q-bass'                                       '1'
'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-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.808489'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fce946b8-0332-43c6-af34-7a180d305cb0')

========================== row from database ==========================
                                              'id'  1397497
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Boredoms/[1993] Pop Tatari/18 グレイトボアフル・デッド.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  41
                                           'genre'  loc-asia-japan;set-pl-sced
                                        'filesize'  1353770
                                           'mtime'  1637019841
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia [1993] 18 グレイトボアフル・デッド loc asia japan;set pl sced
                                      'tag_artist'  Boredoms
                                     'tag_release'  Pop Tatari
                                       'tag_title'  Greatboreful Dead
                                             'bpm'  123.0
                                    'search_title'  'dead':2 'greatboreful':1
                                   'search_artist'  'boredoms':1
                                  'search_release'  'pop':1 'tatari':2
                                     'search_rest'  '00asia':1 '18':4 '1993':2,3 'asia':10 'japan':11,13 'kureitohoahuru':7 'loc':9 'pl':15 'sced':16 'set':12,14 'tetuto':8 'グレイトボアフル':5 'デッド':6
                                    'search_combo'  '00asia':6 '18':9 '1993':7,8 'asia':15 'boredoms':3B 'dead':2A 'greatboreful':1A 'japan':16,18 'kureitohoahuru':12 'loc':14 'pl':20 'pop':4C 'sced':21 'set':17,19 'tatari':5C 'tetuto':13 'グレイトボアフル':10 'デッド':11
                                    'tag_tracknum'  18
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['noise', 'japanese', 'experimental', 'avant garde', 'psychedelic', 'noise rock']
                                        'tag_date'  1992
                                     'discogstags'  ['rock', 'noise', 'psychedelic rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1637019841.1263134  (2021-11-16 00:44:01)
                             'size'  1353770