======================== unified (from filesystem) ========================
                                         'bitrate'  '217.475'
                                        'duration'  '324'
                                          'artist'  'eX-Girl'
                                     'text_people'  ''
                                         'release'  'Endangered Species'
                                           'title'  'e-sa-ya'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']"
                                     'discogstags'  "['rock', 'avantgarde']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '100.406'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000124C 00001459 00004189'
'COMM:iTunNORM:eng'                                 (' 0000124C 00001459 00004189 00004F9C 000300DA 00048E3B 00008000 00008000 '
 '0000737E 00010D27')
'TALB' (Album/Movie/Show title)                     'Endangered Species'
'TBPM' (BPM (beats per minute))                     '100.406'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'e-sa-ya'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'eX-Girl'
'TPE2' (Band/orchestra/accompaniment)               'eX-Girl'
'TRCK' (Track number/Position in set)               '1'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97 (beta)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'avantgarde']
'TXXX:lastfmtags'                                   ['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.78 dB'
'TXXX:replaygain_track_peak'                        '0.406491'

========================== row from database ==========================
                                              'id'  390358
                                            'path'  /data/Music/Bulk/00localcharacter/eX-Girl/[2004] Endangered Species/01 e-sa-ya.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  324
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  8940732
                                           'mtime'  1622757809
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2004] 01 loc asia japan;loc asia japan jrock
                                      'tag_artist'  eX-Girl
                                     'tag_release'  Endangered Species
                                       'tag_title'  e-sa-ya
                                             'bpm'  100.406
                                    'search_title'  'e':1 'esaya':4 'sa':2 'ya':3
                                   'search_artist'  'e':4 'ex':1 'exgirl':3 'girl':2,6 'x':5 'xgirl':7
                                  'search_release'  'endangered':1 'species':2
                                     'search_rest'  '2004':1,2 'asia':4 'japan':5,7,9 'jrock':10 'loc':3,6,8
                                    'search_combo'  '2004':14,15 'asia':17 'e':1A,8B 'endangered':12C 'esaya':4A 'ex':5B 'exgirl':7B 'girl':6B,10B 'japan':18,20,22 'jrock':23 'loc':16,19,21 'sa':2A 'species':13C 'x':9B 'xgirl':11B 'ya':3A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']
                                        'tag_date'  2004
                                     'discogstags'  ['rock', 'avantgarde']

============================== file details ==============================
                                           'mtime'  1622757808.675619  (2021-06-04 00:03:28)
                             'size'  8940732