======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '193'
                                          'artist'  'Cannibal Corpse'
                                     'text_people'  ''
                                         'release'  'Vile'
                                           'title'  'Devoured by Vermin'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-4', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'grindcore', 'american', 'death metal', 'brutal death metal']"
                                     'discogstags'  "['death metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '13'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '136.736'
                                             'key'  '6A'
                                        'acoustid'  '5315c19b-f931-4500-a73c-25d62e2b7f48'
rest: ''

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

'PRIV:AverageLevel:{\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x19\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'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 \x002\x003\x004\x008\x001\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x008\x003\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x005\x008\x007\x003\x008\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x003\x004\x008\x001\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x008\x003\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x005\x008\x007\x003\x008\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:G\x0cl\xadhWòD\x94AÙÁüi¡\x98'  PRIV(owner='WM/WMCollectionGroupID', data=b'G\x0cl\xadhW\xf2D\x94A\xd9\xc1\xfci\xa1\x98')
'PRIV:WM/WMCollectionID:G\x0cl\xadhWòD\x94AÙÁüi¡\x98'  PRIV(owner='WM/WMCollectionID', data=b'G\x0cl\xadhW\xf2D\x94A\xd9\xc1\xfci\xa1\x98')
'PRIV:WM/WMContentID::öøâA`;Hº?\x81¹øê0ß'           PRIV(owner='WM/WMContentID', data=b':\xf6\xf8\xe2A`;H\xba?\x81\xb9\xf8\xea0\xdf')
'TALB' (Album/Movie/Show title)                     'Vile'
'TBPM' (BPM (beats per minute))                     '136.736'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Devoured by Vermin'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Cannibal Corpse'
'TPE2' (Band/orchestra/accompaniment)               'Cannibal Corpse'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Metal Blade Records'
'TRCK' (Track number/Position in set)               '1/13'
'TSO2'                                              'Cannibal Corpse'
'TSOP' (Performer sort order)                       'Cannibal Corpse'
'TXXX:Acoustid Id'                                  '5315c19b-f931-4500-a73c-25d62e2b7f48'
'TXXX:BARCODE'                                      '039841422023'
'TXXX:CATALOGNUMBER'                                '3984-14220-2'
'TXXX:MusicBrainz Album Artist Id'                  'af8e4cc5-ef54-458d-a194-7b210acf638f'
'TXXX:MusicBrainz Album Id'                         'a210dd6b-3e5d-4313-83f3-2e444956247b'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'af8e4cc5-ef54-458d-a194-7b210acf638f'
'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:QuodLibet::location'                          'US'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['death metal', 'rock']
'TXXX:lastfmtags'                                   ['metal', 'grindcore', 'american', 'death metal', 'brutal death metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.13 dB'
'TXXX:replaygain_track_peak'                        '0.427857'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'00e7455f-714d-4096-8992-61a49c6aa54b')

========================== row from database ==========================
                                              'id'  1391087
                                            'path'  /data/Music/Bulk/00dwimp/00metal/00death/Cannibal Corpse - US - 1996 - Vile/Cannibal Corpse - US - 1996 - Vile - 01 - Devoured by Vermin.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  193
                                           'genre'  eid-metal-death
                                        'filesize'  7733256
                                           'mtime'  1620301688
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 00death US 1996 US 1996 01 eid metal death
                                      'tag_artist'  Cannibal Corpse
                                     'tag_release'  Vile
                                       'tag_title'  Devoured by Vermin
                                             'bpm'  136.736
                                    'search_title'  'by':2 'devoured':1 'vermin':3
                                   'search_artist'  'cannibal':1 'corpse':2
                                  'search_release'  'vile':1
                                     'search_rest'  '00death':3 '00dwimp':1 '00metal':2 '1996':5 'death':8 'eid':6 'metal':7 'us':4
                                    'search_combo'  '00death':9 '00dwimp':7 '00metal':8 '1996':11 'by':2A 'cannibal':4B 'corpse':5B 'death':14 'devoured':1A 'eid':12 'metal':13 'us':10 'vermin':3A 'vile':6C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['metal', 'grindcore', 'american', 'death metal', 'brutal death metal']
                                        'tag_date'  1996
                                     'discogstags'  ['death metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301687.6780467  (2021-05-06 13:48:07)
                             'size'  7733256