======================== unified (from filesystem) ========================
                                         'bitrate'  '241.45'
                                        'duration'  '262'
                                          'artist'  'Deadlock'
                                     'text_people'  ''
                                         'release'  'Manifesto'
                                           'title'  "Slaughter's Palace"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['female fronted metal', 'german', 'metal', 'death metal', 'metalcore', "
 "'melodic death metal']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '91.971'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
"PRIV:http://www.cdtag.com:\x02\x00ñ'N\x00"         PRIV(owner='http://www.cdtag.com', data=b"\x02\x00\xf1'N\x00")
'TALB' (Album/Movie/Show title)                     'Manifesto'
'TBPM' (BPM (beats per minute))                     '91.971'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         "Slaughter's Palace"
'TKEY' (Initial key)                                '9B'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Deadlock'
'TPUB' (Publisher)                                  'Lifeforce'
'TRCK' (Track number/Position in set)               '3'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Release type'                                 'Promo'
'TXXX:Rip date'                                     '2008-10-13'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['female fronted metal',
 'german',
 'metal',
 'death metal',
 'metalcore',
 'melodic death metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.65 dB'
'TXXX:replaygain_track_peak'                        '0.291576'

========================== row from database ==========================
                                              'id'  1402006
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Deadlock/03-slaughters palace-gw.mp3
                                         'working'  None
                                         'bitrate'  241
                                    'duration_sec'  262
                                           'genre'  eid-metal-death
                                        'filesize'  7935755
                                           'mtime'  1620301880
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 03 slaughters palace gw eid metal death
                                      'tag_artist'  Deadlock
                                     'tag_release'  Manifesto
                                       'tag_title'  Slaughter's Palace
                                             'bpm'  91.971
                                    'search_title'  'palace':4 's':2 'slaughter':1 'slaughters':3
                                   'search_artist'  'deadlock':1
                                  'search_release'  'manifesto':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':8 'eid':6 'gw':5 'metal':7 'palace':4 'slaughters':3
                                    'search_combo'  '00dwimp':7 '00metal':8 'deadlock':5B 'death':14 'eid':12 'gw':11 'manifesto':6C 'metal':13 'palace':4A,10 's':2A 'slaughter':1A 'slaughters':3A,9
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['female fronted metal', 'german', 'metal', 'death metal', 'metalcore', 'melodic death metal']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620301879.8697777  (2021-05-06 13:51:19)
                             'size'  7935755