======================== unified (from filesystem) ========================
                                         'bitrate'  '252.431'
                                        'duration'  '196'
                                          'artist'  'Arch Enemy'
                                     'text_people'  'Arch Enemy'
                                         'release'  'Black Earth'
                                           'title'  'Dark Insanity'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', '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-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['swedish', 'metal', 'melodic death metal', 'death metal', 'female fronted "
 "metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'eid-metal-death;eid-metal-melodic'
                                             'bpm'  '128.414'
                                             'key'  '10A'
                                        '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:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x002\x008\x000\x007\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x009\x004\x000\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x007\x005\x002\x006\x004\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x002\x008\x000\x007\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x009\x004\x000\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x007\x005\x002\x006\x004\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:0çbÇÅù\x1bH\x9báæM\x82ìļ'  PRIV(owner='WM/WMCollectionGroupID', data=b'0\xe7b\xc7\xc5\xf9\x1bH\x9b\xe1\xe6M\x82\xec\xc4\xbc')
'PRIV:WM/WMCollectionID:0çbÇÅù\x1bH\x9báæM\x82ìļ'  PRIV(owner='WM/WMCollectionID', data=b'0\xe7b\xc7\xc5\xf9\x1bH\x9b\xe1\xe6M\x82\xec\xc4\xbc')
'PRIV:WM/WMContentID:\x86Ô\x8d\x12±\x92¶N\x80\x8c\x14ìM\x9b\x15m'  PRIV(owner='WM/WMContentID', data=b'\x86\xd4\x8d\x12\xb1\x92\xb6N\x80\x8c\x14\xecM\x9b\x15m')
'TALB' (Album/Movie/Show title)                     'Black Earth'
'TBPM' (BPM (beats per minute))                     '128.414'
'TCOM' (Composer)                                   'Arch Enemy'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death', 'eid-metal-melodic']
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Dark Insanity'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arch Enemy'
'TPE2' (Band/orchestra/accompaniment)               'Arch Enemy'
'TPUB' (Publisher)                                  'Wrong'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['swedish',
 'metal',
 'melodic death metal',
 'death metal',
 'female fronted metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.92 dB'
'TXXX:replaygain_track_peak'                        '0.346270'

========================== row from database ==========================
                                              'id'  1352120
                                            'path'  /data/Music/Bulk/00poprockelectronic/Arch Enemy/1999 - Black Earth [--aps]/02- Arch Enemy - Dark Insanity.mp3
                                         'working'  None
                                         'bitrate'  252
                                    'duration_sec'  196
                                           'genre'  eid-metal-death;eid-metal-melodic
                                        'filesize'  6199310
                                           'mtime'  1620302138
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1999 [ aps] 02 eid metal death;eid metal melodic
                                      'tag_artist'  Arch Enemy
                                     'tag_release'  Black Earth
                                       'tag_title'  Dark Insanity
                                             'bpm'  128.414
                                    'search_title'  'dark':1 'insanity':2
                                   'search_artist'  'arch':1 'enemy':2
                                  'search_release'  'black':1 'earth':2
                                     'search_rest'  '00poprockelectronic':1 '1999':2 'aps':3,4 'death':7,9 'eid':5,8,10 'melodic':11 'metal':6
                                    'search_combo'  '00poprockelectronic':7 '1999':8 'aps':9,10 'arch':3B 'black':5C 'dark':1A 'death':13,15 'earth':6C 'eid':11,14,16 'enemy':4B 'insanity':2A 'melodic':17 'metal':12
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['swedish', 'metal', 'melodic death metal', 'death metal', 'female fronted metal']
                                        'tag_date'  1996
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302137.6389308  (2021-05-06 13:55:37)
                             'size'  6199310