======================== unified (from filesystem) ========================
                                         'bitrate'  '180.65'
                                        'duration'  '129'
                                          'artist'  'system of a down'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '94.636'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'GEOB:RealJukebox:Metadata'                         GEOB(encoding=<Encoding.LATIN1: 0>, mime='binary', filename='', desc='RealJukebox:Metadata', data=b"RJEX\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06zys001\x00\x00\x00L\x01\x02\x00\x00\x02f\x00\x00\x00\xa4\x00\x00\x9ae\xbeT\x19\xaejI\xb1\xd4\x1b\x02\r\xd7\xf0\x1c\xe5?\xe3\xb4\x97X\x8a\xc16\\\r\x00\x02\xd2\xaa\xdf\xd3\xc9\x93\xdf\xfdce\x0eEh\xdbp\x0e\x11I\xd2\xeea\xc4R,\x99\\fG'\xc1\xa3\x12K\xa2\x03\x00\x00\x02\x00#H>T\xe3\xd5\xf6v\xfd\xd6\xcc\xef*,H\xab>\xab\\\xa91\xc0\x0bs\xb5G\xecx\x02H%\xe6Z\x9e}\xa4)PYFYwHgGfA!ch\xb2\xca\x04\xf2\x96\x02\x7f\x19w\xae/\xed\x05\xe9h\x9ac\x87\x8b\x0e\xe6f\xe6=\xd5\xf3n\xbf.\xe2\xc5\x806|\x92'\xe7\n\xd5\xc7\x15\x101Q\xd7\xdb\x80\x87.\x01c/U\xb1\xe3\xd7V\xd42\x07>\xecCm\xb3Q\x8a\xf00\xff)C\x89\xd3K\n\xed\xa0\x04\xda\xe7\x82]Z\x10;\x06\x88>\x19+\x8fA\x04B\x85z\x94\xd4p\xc8\xeam\xb9J\xf8b\x1b\xc3D\x05\x14\xa6\xe6\xc4t\x99Y\xb3\xb8#\x8aX\xa15pG\xe2\n\xf7\xa8X\x00\xbe\x96\xec\\\x88g[\xe7'\xb2jm\xbc/$\x84\n&-\xd4.\xdd\x9a\xd8\xde\x97\x19\xf4\x90+\x07Dv_ u\xbe\x97zC0,\xa2\x1556_\xed\x8d>\x0e9r\x97K\x84\x0ba\xa8q\x96\xb7+\x92\x04(\x018\xf2\xd09\xff\xd6ri\xab\xf3F\xa0\\/%\xcd\xf94nn\xa2\xe9\x12\xb1\xbe\x02\xf5H\x9b\xb3\xa2-\xe2\xf2\x06\x7f\xdf\xd8_\xa0#'{J\xf2\xc1V\x8d\xbb4\x15\xcb2u\x92\xe0\x0ch-\xe5\x9e\x12y\x91c>\xbfZ\xec\xaaB\xefwS\xaa\xae$\xd2/AB@\n\x8ciJ(\xd7\xe5b\x95\x9c\xb2\xb9\xa8\xd6Q\x93Z\x1fJ\xe3\xe4\x90~\x85\xa5\x84\x86\xc6E\xa4\xa7\x98\xdf\xdfdF\xdf\\+\x89\xafLy\t\x90\xb8u\x08z\xbbF\x1d\x11~E\x10\x81T:\xdf\r\xe4\xff\x02[B=\xc0$w\xaaQ\xa6\r\x8d-\xf6\xf6\x1c\x83\xec\xf7\xa8>\x88?\x03\x19\x85J2\xb6,)\xb5\x9b\xdf.\xd1D\xe5\xb3L6\xa21\x04\xde\xd1e\xb6\x1b\\\x83\xbe\x08rw\xac>\xa1_4\xe4\xcc\xb4m\x02V;\x1d\xd4\xee\xb6\x7fH\xb64|+\xeeu\x81+N\xbe\x90<\xd5U\x18\x85\x8e\x9f52\xae\x8b\x00*=\x146\xb5D\x99*\xa6J\xfb2u\xfbB\xc0\xb3\xef\xa1\x11\xcb")
'TBPM' (BPM (beats per minute))                     '94.636'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'system of a down'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.356857'

========================== row from database ==========================
                                              'id'  1299749
                                            'path'  /data/Music/Bulk/00poprockelectronic/System Of A Down/Unknown/System of A Down - Johnny.mp3
                                         'working'  None
                                         'bitrate'  180
                                    'duration_sec'  129
                                           'genre'  eid-unsorted
                                        'filesize'  2928784
                                           'mtime'  1620521332
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic System Of A Down Unknown System A Down Johnny eid unsorted
                                      'tag_artist'  system of a down
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  94.636
                                    'search_title'  None
                                   'search_artist'  'a':3 'down':4 'of':2 'system':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'a':4 'down':5 'eid':8 'johnny':7 'of':3 'system':2 'unknown':6 'unsorted':9
                                    'search_combo'  '00poprockelectronic':5 'a':3B,8 'down':4B,9 'eid':12 'johnny':11 'of':2B,7 'system':1B,6 'unknown':10 'unsorted':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620521332.2910492  (2021-05-09 02:48:52)
                             'size'  2928784