======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '324'
                                          'artist'  'Kanye West, Nas, Rakim, Krs One'
                                     'text_people'  'Rom1'
                                         'release'  'Bala Bale Bali Balo'
                                           'title'  'Classic (Nike Remix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['classic', 'hiphop', 'kanye west', 'hot', 'dj premier']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '2'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '100.1'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         ['0',
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 '0003CF1A 0003CF1A',
 ' 00000000 00000210 00000AE0 0000000000DA0610 00000000 00769A73 00000000 '
 '00000000 00000000 00000000 00000000 00000000']
'TALB' (Album/Movie/Show title)                     'Bala Bale Bali Balo'
'TBPM' (BPM (beats per minute))                     '100.1'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Rom1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.0.1'
'TIT2' (Title/songname/content description)         'Classic (Nike Remix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kanye West, Nas, Rakim, Krs One'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1/2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic', 'hiphop', 'kanye west', 'hot', 'dj premier']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.863869'

========================== row from database ==========================
                                              'id'  725521
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Seni/Kanye West, Nas, Rakim, Krs One - Classic (Nike Remix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  324
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  10384609
                                           'mtime'  1636910111
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Seni electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Kanye West, Nas, Rakim, Krs One
                                     'tag_release'  Bala Bale Bali Balo
                                       'tag_title'  Classic (Nike Remix)
                                             'bpm'  100.1
                                    'search_title'  'classic':1 'nike':2,3 'remix':4,5
                                   'search_artist'  'kanye':1 'krs':8 'nas':4,5 'one':9 'rakim':6,7 'west':2,3
                                  'search_release'  'bala':1 'bale':2 'bali':3 'balo':4
                                     'search_rest'  'acid':7 'downtempo':6 'electronic':2 'hop':4 'jazz':8 'or':5 'seni':1 'trip':3
                                    'search_combo'  'acid':25 'bala':15C 'bale':16C 'bali':17C 'balo':18C 'classic':1A 'downtempo':24 'electronic':20 'hop':22 'jazz':26 'kanye':6B 'krs':13B 'nas':9B,10B 'nike':2A,3A 'one':14B 'or':23 'rakim':11B,12B 'remix':4A,5A 'seni':19 'trip':21 'west':7B,8B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic', 'hiphop', 'kanye west', 'hot', 'dj premier']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910110.700308  (2021-11-14 18:15:10)
                             'size'  10384609