======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '113'
                                          'artist'  'X JAPAN'
                                     'text_people'  ''
                                         'release'  'Jealousy'
                                           'title'  'Es Dur Piano Solo'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-3', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-2', 'q-other-2', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan-jrock-visualkei;set-pl-sced'
                                             'bpm'  '99.763'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000020D 0000023C 0000094E'
'COMM:iTunNORM:eng'                                 (' 0000020D 0000023C 0000094E 0000095E 000186E5 00015FBE 00004AFC 00003D93 '
 '000186CE 000186CE')
'TALB' (Album/Movie/Show title)                     'Jealousy'
'TBPM' (BPM (beats per minute))                     '99.763'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan-jrock-visualkei', 'set-pl-sced']
'TDRC' (Recording time)                             '1991'
'TENC' (Encoded by)                                 'FreeRIP 2.944'
'TIT2' (Title/songname/content description)         'Es Dur Piano Solo'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'X JAPAN'
'TPE2' (Band/orchestra/accompaniment)               'X JAPAN'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.571758'

========================== row from database ==========================
                                              'id'  928399
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/X JAPAN/[1991] Jealousy/01 Es Dur Piano Solo.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  113
                                           'genre'  loc-asia-japan-jrock-visualkei;set-pl-sced
                                        'filesize'  4557603
                                           'mtime'  1623430480
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia [1991] 01 loc asia japan jrock visualkei;set pl sced
                                      'tag_artist'  X JAPAN
                                     'tag_release'  Jealousy
                                       'tag_title'  Es Dur Piano Solo
                                             'bpm'  99.763
                                    'search_title'  'dur':2 'es':1 'piano':3 'solo':4
                                   'search_artist'  'japan':2 'x':1
                                  'search_release'  'jealousy':1
                                     'search_rest'  '00asia':1 '1991':2,3 'asia':5 'japan':6 'jrock':7 'loc':4 'pl':12 'sced':13 'set':9,11 'visualkei':8,10
                                    'search_combo'  '00asia':8 '1991':9,10 'asia':12 'dur':2A 'es':1A 'japan':6B,13 'jealousy':7C 'jrock':14 'loc':11 'piano':3A 'pl':19 'sced':20 'set':16,18 'solo':4A 'visualkei':15,17 'x':5B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['heavy metal', 'visual kei', 'metal', 'japanese', 'j rock']
                                        'tag_date'  1991
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1623430480.2707515  (2021-06-11 18:54:40)
                             'size'  4557603