======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '234'
                                          'artist'  'Michael Jackson'
                                     'text_people'  'Michael Jackson'
                                         'release'  'Bad'
                                           'title'  'Another Part of Me'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'dance', 'rock', 'pop']"
                                     'discogstags'  "['electronic', 'house', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '106.141'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x004\x009\x002\x00A\x00+\x00A\x000\x007\x00F\x00+\x00E\x007\x002\x002\x00+\x001\x002\x00B\x009\x00C\x00+\x001\x007\x004\x001\x002\x00+\x001\x00B\x008\x00D\x007\x00+\x002\x001\x006\x007\x004\x00+\x002\x006\x000\x008\x00E\x00+\x002\x00B\x002\x00E\x00D\x00+\x002\x00F\x00E\x006\x005\x00+\x003\x005\x000\x009\x000\x00+\x003\x009\x007\x00D\x00D\x00+\x003\x00F\x00E\x001\x00C\x00+\x004\x003\x000\x00E\x006\x00+\x004\x007\x008\x00B\x00A\x00+\x004\x00A\x004\x00B\x00B\x00+\x004\x00A\x007\x004\x000\x00+\x004\x00E\x003\x00A\x009\x00\x00\x00')
'PRIV:AverageLevel:\x1b\x1d\x00\x00'                PRIV(owner='AverageLevel', data=b'\x1b\x1d\x00\x00')
'PRIV:PeakValue:\x88~\x00\x00'                      PRIV(owner='PeakValue', data=b'\x88~\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 \x005\x005\x007\x002\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x005\x007\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x001\x004\x005\x005\x000\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x005\x007\x002\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x005\x007\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x001\x004\x005\x005\x000\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x95É¡2\x88\x8c-L½Z\x82Чܺà'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x95\xc9\xa12\x88\x8c-L\xbdZ\x82\xd0\xa7\xdc\xba\xe0')
'PRIV:WM/WMCollectionID:\x95É¡2\x88\x8c-L½Z\x82Чܺà'  PRIV(owner='WM/WMCollectionID', data=b'\x95\xc9\xa12\x88\x8c-L\xbdZ\x82\xd0\xa7\xdc\xba\xe0')
'PRIV:WM/WMContentID:vô0©»ÖÙJ¾V\x0c\x91Aª\x91f'     PRIV(owner='WM/WMContentID', data=b'v\xf40\xa9\xbb\xd6\xd9J\xbeV\x0c\x91A\xaa\x91f')
'TALB' (Album/Movie/Show title)                     'Bad'
'TBPM' (BPM (beats per minute))                     '106.141'
'TCOM' (Composer)                                   'Michael Jackson'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Another Part of Me'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '234733'
'TPE1' (Lead performer(s)/Soloist(s))               'Michael Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Michael Jackson'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'house', 'synth-pop']
'TXXX:lastfmtags'                                   ['80s', 'dance', 'rock', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.19 dB'
'TXXX:replaygain_track_peak'                        '0.335975'

========================== row from database ==========================
                                              'id'  1314536
                                            'path'  /data/Music/Bulk/00poprockelectronic/Michael Jackson/Bad/06 Another Part of Me.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  234
                                           'genre'  rock-unsorted
                                        'filesize'  9383395
                                           'mtime'  1621696406
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 rock unsorted
                                      'tag_artist'  Michael Jackson
                                     'tag_release'  Bad
                                       'tag_title'  Another Part of Me
                                             'bpm'  106.141
                                    'search_title'  'another':1 'me':4 'of':3 'part':2
                                   'search_artist'  'jackson':2 'michael':1
                                  'search_release'  'bad':1
                                     'search_rest'  '00poprockelectronic':1 'rock':2 'unsorted':3
                                    'search_combo'  '00poprockelectronic':8 'another':1A 'bad':7C 'jackson':6B 'me':4A 'michael':5B 'of':3A 'part':2A 'rock':9 'unsorted':10
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'dance', 'rock', 'pop']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'house', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1621696405.8897338  (2021-05-22 17:13:25)
                             'size'  9383395