======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '240'
                                          'artist'  'Merry'
                                     'text_people'  ''
                                         'release'  'nu CHEMICAL RHETORIC'
                                           'title'  'Refrain ~doyoubi no namida~'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '84.000'
                                             'key'  '10A'
                                        'acoustid'  'ba6cbf7b-1bad-4995-9c7d-b9a5b0a0173c'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000029C9 00002BE0 00009409'
'COMM:iTunNORM:eng'                                 (' 000029C9 00002BE0 00009409 0000B2A6 00027117 00027117 00008000 00008000 '
 '00004E37 00007547')
'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x009\x006\x00+\x001\x00F\x004\x00F\x00+\x005\x00A\x00D\x00F\x00+\x008\x00D\x002\x002\x00+\x00C\x008\x000\x00D\x00+\x001\x000\x00E\x000\x00F\x00+\x001\x006\x000\x00D\x000\x00+\x001\x00A\x008\x008\x008\x00+\x001\x00F\x004\x002\x006\x00+\x002\x001\x00E\x004\x002\x00+\x002\x006\x004\x00E\x004\x00+\x002\x00A\x006\x006\x00E\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'nu CHEMICAL RHETORIC'
'TBPM' (BPM (beats per minute))                     '84.000'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2006-06-02'
'TIT2' (Title/songname/content description)         'Refrain ~doyoubi no namida~'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Merry'
'TPE2' (Band/orchestra/accompaniment)               'Merry'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'GAN-SHIN'
'TRCK' (Track number/Position in set)               '10/11'
'TSO2'                                              'MERRY'
'TSOP' (Performer sort order)                       'MERRY'
'TSRC' (ISRC (international standard recording code))  'JPVI00522550'
'TXXX:ASIN'                                         'B000EPFNVC'
'TXXX:Acoustid Id'                                  'ba6cbf7b-1bad-4995-9c7d-b9a5b0a0173c'
'TXXX:Artists'                                      'Merry'
'TXXX:BARCODE'                                      '4027792000830'
'TXXX:CATALOGNUMBER'                                'GSCD-012'
'TXXX:MusicBrainz Album Artist Id'                  '724a879a-77a9-44e7-89c8-8c600cc92861'
'TXXX:MusicBrainz Album Id'                         'f5c07fea-5c0e-40b9-939f-8a11ace46471'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '724a879a-77a9-44e7-89c8-8c600cc92861'
'TXXX:MusicBrainz Release Group Id'                 'c9fe263d-fb3c-35e7-9913-fdb9a7b4f157'
'TXXX:MusicBrainz Release Track Id'                 '596e1037-2d1c-38ba-90bb-c44e2e939276'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.04 dB'
'TXXX:replaygain_track_peak'                        '0.346516'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'cd7705fe-a1b5-4c9e-8b33-85f968cbca32')

========================== row from database ==========================
                                              'id'  273978
                                            'path'  /data/Music/Bulk/00localcharacter/Merii/nu-Chemical Rhetoric/10 refrain ~namida no doyoubi~.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  240
                                           'genre'  loc-asia-japan
                                        'filesize'  5845179
                                           'mtime'  1622821603
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Merii Chemical Rhetoric 10 refrain ~namida doyoubi~ loc asia japan
                                      'tag_artist'  Merry
                                     'tag_release'  nu CHEMICAL RHETORIC
                                       'tag_title'  Refrain ~doyoubi no namida~
                                             'bpm'  84.0
                                    'search_title'  'doyoubi':2 'namida':4 'no':3 'refrain':1
                                   'search_artist'  'merry':1
                                  'search_release'  'chemical':2 'nu':1 'rhetoric':3
                                     'search_rest'  'asia':8 'chemical':2 'doyoubi':6 'japan':9 'loc':7 'merii':1 'namida':5 'refrain':4 'rhetoric':3
                                    'search_combo'  'asia':16 'chemical':7C,10 'doyoubi':2A,14 'japan':17 'loc':15 'merii':9 'merry':5B 'namida':4A,13 'no':3A 'nu':6C 'refrain':1A,12 'rhetoric':8C,11
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', '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-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'visual kei', 'japanese', 'eroguro', 'j rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821602.7558095  (2021-06-04 17:46:42)
                             'size'  5845179