======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'Merzbow  + ∝'
                                     'text_people'  ''
                                         'release'  'Insane Music For Insane People Vol. 3'
                                           'title'  'Envois # 5 [Excerpt]'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '14'
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-mor'
                                             'bpm'  '94.4'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunes_CDDB_1:eng'                            'A60E9A0D+280508+13+150+13299+26740+43552+62484+77561+99814+111072+126585+138677+160079+248541+265831'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '12'
'PRIV:AverageLevel:{\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x13\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Insane Music For Insane People Vol. 3'
'TBPM' (BPM (beats per minute))                     '94.4'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-mor']
'TDRC' (Recording time)                             '1983'
'TENC' (Encoded by)                                 'iTunes v4.7.1'
'TIT2' (Title/songname/content description)         'Envois # 5 [Excerpt]'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Merzbow  + ∝'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13/14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:itunescompilation'                            ['1', '1']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.623235'

========================== row from database ==========================
                                              'id'  1366882
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Human Flesh - Insane Music For Insane People Vol. 3 (Insane Music, 1983) [192k]/B4 Merzbow + ∝ – Envois # 5 [Excerpt].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  electronic-unsorted;set-pl-mor
                                        'filesize'  5646831
                                           'mtime'  1638556465
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Human Flesh (Insane Music, 1983) [192k] B4 – electronic unsorted;set mor
                                      'tag_artist'  Merzbow  + ∝
                                     'tag_release'  Insane Music For Insane People Vol. 3
                                       'tag_title'  Envois # 5 [Excerpt]
                                             'bpm'  94.4
                                    'search_title'  '5':2 'envois':1 'excerpt':3,4
                                   'search_artist'  'merzbow':1
                                  'search_release'  '3':7 'for':3 'insane':1 'music':2 'people':4 'vol':5,6
                                     'search_rest'  '192k':9,10 '1983':7,8 'b4':11 'electronic':12 'flesh':2 'human':1 'insane':3,4 'mor':17 'music':5,6 'set':14,16 'unsorted':13,15
                                    'search_combo'  '192k':21,22 '1983':19,20 '3':12C '5':2A 'b4':23 'electronic':24 'envois':1A 'excerpt':3A,4A 'flesh':14 'for':8C 'human':13 'insane':6C,15,16 'merzbow':5B 'mor':29 'music':7C,17,18 'people':9C 'set':26,28 'unsorted':25,27 'vol':10C,11C
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1983
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638556464.548877  (2021-12-03 19:34:24)
                             'size'  5646831