======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '234'
                                          'artist'  'Peter and Caspar Brötzmann'
                                     'text_people'  ''
                                         'release'  'Last Home'
                                           'title'  'Die, Saurier, Die'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['free jazz', 'improv', 'german', 'jazz', 'noise']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '135.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'9\x00+\x009\x006\x00+\x004\x005\x004\x00E\x00+\x00F\x004\x00C\x00E\x00+\x001\x004\x006\x00B\x005\x00+\x001\x00A\x00A\x00F\x006\x00+\x001\x00F\x00A\x001\x008\x00+\x002\x005\x002\x000\x003\x00+\x002\x00B\x007\x009\x00B\x00+\x003\x002\x000\x007\x00D\x00+\x004\x004\x000\x00F\x007\x00\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 \x001\x006\x005\x006\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x006\x001\x008\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x005\x005\x003\x006\x002\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x006\x005\x006\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x006\x001\x008\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x005\x005\x003\x006\x002\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:NB\t3À\x02ðG\x9b&W\x18§×\x15\x96'  PRIV(owner='WM/WMCollectionGroupID', data=b'NB\t3\xc0\x02\xf0G\x9b&W\x18\xa7\xd7\x15\x96')
'PRIV:WM/WMCollectionID:NB\t3À\x02ðG\x9b&W\x18§×\x15\x96'  PRIV(owner='WM/WMCollectionID', data=b'NB\t3\xc0\x02\xf0G\x9b&W\x18\xa7\xd7\x15\x96')
'PRIV:WM/WMContentID:Õ-kûjüíA\x92\x9a\x9fsÛHØÒ'     PRIV(owner='WM/WMContentID', data=b'\xd5-k\xfbj\xfc\xedA\x92\x9a\x9fs\xdbH\xd8\xd2')
'PRIV:ZuneCollectionID:õ$ÎTbÝ\x8aE³\x0fÁß`8kç'      PRIV(owner='ZuneCollectionID', data=b'\xf5$\xceTb\xdd\x8aE\xb3\x0f\xc1\xdf`8k\xe7')
'TALB' (Album/Movie/Show title)                     'Last Home'
'TBPM' (BPM (beats per minute))                     '135.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Die, Saurier, Die'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peter and Caspar Brötzmann'
'TPE2' (Band/orchestra/accompaniment)               'Peter and Caspar Brötzmann'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['free jazz', 'improv', 'german', 'jazz', 'noise']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.677233'

========================== row from database ==========================
                                              'id'  649057
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Caspar_and_Peter_Broetzmann_-_01_-_Die_Saurier_Die.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  234
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3774464
                                           'mtime'  1620539174
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music for maniacs Caspar_and_Peter_Broetzmann_ _01_ _Die_Saurier_Die prerock jb jazz unsorted
                                      'tag_artist'  Peter and Caspar Brötzmann
                                     'tag_release'  Last Home
                                       'tag_title'  Die, Saurier, Die
                                             'bpm'  135.0
                                    'search_title'  'die':1,2 'saurier':3,4
                                   'search_artist'  'and':2 'brotzmann':4,5 'caspar':3 'peter':1
                                  'search_release'  'home':2 'last':1
                                     'search_rest'  '01':8 'and':5 'broetzmann':7 'caspar':4 'die':9,11 'for':2 'jazz':14 'jb':13 'maniacs':3 'music':1 'peter':6 'prerock':12 'saurier':10 'unsorted':15
                                    'search_combo'  '01':19 'and':6B,16 'broetzmann':18 'brotzmann':8B,9B 'caspar':7B,15 'die':1A,2A,20,22 'for':13 'home':11C 'jazz':25 'jb':24 'last':10C 'maniacs':14 'music':12 'peter':5B,17 'prerock':23 'saurier':3A,4A,21 'unsorted':26
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['free jazz', 'improv', 'german', 'jazz', 'noise']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539174.103151  (2021-05-09 07:46:14)
                             'size'  3774464