======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '190'
                                          'artist'  'Thelma Cooper'
                                     'text_people'  ''
                                         'release'  'The Collectables Blues Collection, Vol. 1'
                                           'title'  'Ooh Daddy'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rhythm and blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues;set-th-sex'
                                             'bpm'  '144.335'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x000\x00+\x00B\x007\x00+\x003\x004\x00B\x00F\x00+\x006\x003\x00B\x008\x00+\x008\x00D\x00C\x005\x00+\x00C\x001\x008\x00C\x00+\x00F\x000\x00E\x00B\x00+\x001\x002\x003\x00D\x00B\x00+\x001\x005\x002\x001\x004\x00+\x001\x008\x00C\x004\x000\x00+\x001\x00C\x004\x000\x003\x00+\x001\x00F\x00B\x00A\x00D\x00+\x002\x003\x009\x008\x008\x00+\x002\x006\x008\x00E\x005\x00+\x002\x009\x003\x00E\x00A\x00+\x002\x00C\x006\x00F\x003\x00+\x002\x00F\x006\x004\x00B\x00+\x003\x002\x007\x00F\x00B\x00\x00\x00')
'PRIV:AverageLevel:Z\x07\x00\x00'                   PRIV(owner='AverageLevel', data=b'Z\x07\x00\x00')
'PRIV:PeakValue:p7\x00\x00'                         PRIV(owner='PeakValue', data=b'p7\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\x001\x001\x007\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x004\x006\x000\x005\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x001\x001\x007\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x004\x006\x000\x005\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ì\x17>ý1rÕN\x82/½!¦\x84C8'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xec\x17>\xfd1r\xd5N\x82/\xbd!\xa6\x84C8')
'PRIV:WM/WMCollectionID:ì\x17>ý1rÕN\x82/½!¦\x84C8'  PRIV(owner='WM/WMCollectionID', data=b'\xec\x17>\xfd1r\xd5N\x82/\xbd!\xa6\x84C8')
'PRIV:WM/WMContentID:X\\\x84Ì\x12y¥L¯¤\x15a»ª|R'    PRIV(owner='WM/WMContentID', data=b'X\\\x84\xcc\x12y\xa5L\xaf\xa4\x15a\xbb\xaa|R')
'TALB' (Album/Movie/Show title)                     'The Collectables Blues Collection, Vol. 1'
'TBPM' (BPM (beats per minute))                     '144.335'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-blues', 'set-th-sex']
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Ooh Daddy'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '190000'
'TPE1' (Lead performer(s)/Soloist(s))               'Thelma Cooper'
'TPUB' (Publisher)                                  'Collectables'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'rhythm and blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.47 dB'
'TXXX:replaygain_track_peak'                        '0.515074'

========================== row from database ==========================
                                              'id'  760864
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Thelma Cooper - Ooh Daddy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  190
                                           'genre'  prerock-jb-blues;set-th-sex
                                        'filesize'  3061294
                                           'mtime'  1620343528
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes sexy prerock jb blues;set th sex
                                      'tag_artist'  Thelma Cooper
                                     'tag_release'  The Collectables Blues Collection, Vol. 1
                                       'tag_title'  Ooh Daddy
                                             'bpm'  144.335
                                    'search_title'  'daddy':2 'ooh':1
                                   'search_artist'  'cooper':2 'thelma':1
                                  'search_release'  '1':8 'blues':3 'collectables':2 'collection':4,5 'the':1 'vol':6,7
                                     'search_rest'  '0novelty':2 '0playlists':1 'blues':7,9 'jb':6 'prerock':5 'set':8,10 'sex':12 'sexy':4 'th':11 'themes':3
                                    'search_combo'  '0novelty':14 '0playlists':13 '1':12C 'blues':7C,19,21 'collectables':6C 'collection':8C,9C 'cooper':4B 'daddy':2A 'jb':18 'ooh':1A 'prerock':17 'set':20,22 'sex':24 'sexy':16 'th':23 'the':5C 'thelma':3B 'themes':15 'vol':10C,11C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rhythm and blues']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343528.0121071  (2021-05-07 01:25:28)
                             'size'  3061294