======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '298'
                                          'artist'  'Michael Jackson'
                                     'text_people'  'Michael Jackson/Teddy Riley'
                                         'release'  'Dangerous'
                                           'title'  "Can't Let Her Get Away"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'dance', 'rock', 'pop']"
                                     'discogstags'  "['hip hop', 'rock', 'pop', 'synth-pop', 'rhythm & blues', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '108.529'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000FDC 00001425 00010823'
'COMM:iTunNORM:eng'                                 (' 00000FDC 00001425 00010823 00013699 00027145 00027145 00008000 00008000 '
 '0000EAA5 0000EAA5')
'MCDI' (Music CD identifier)                        MCDI(data=b'E\x00+\x009\x006\x00+\x006\x004\x001\x004\x00+\x00C\x003\x000\x007\x00+\x001\x003\x005\x00B\x00F\x00+\x001\x007\x006\x00B\x002\x00+\x001\x00B\x00D\x001\x004\x00+\x002\x001\x004\x00A\x005\x00+\x002\x008\x005\x007\x000\x00+\x002\x00D\x000\x006\x00B\x00+\x003\x004\x004\x000\x00B\x00+\x003\x00A\x004\x008\x002\x00+\x004\x002\x00B\x007\x006\x00+\x004\x009\x004\x001\x007\x00+\x004\x00C\x00F\x009\x005\x00+\x005\x004\x00A\x000\x003\x00\x00\x00')
'PRIV:AverageLevel:C\x1f\x00\x00'                   PRIV(owner='AverageLevel', data=b'C\x1f\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 \x00 \x001\x000\x000\x009\x005\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 \x001\x000\x000\x003\x002\x009\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x000\x000\x009\x005\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 \x001\x000\x000\x003\x002\x009\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ðáVt\x16§\x8bD¦æ\x03»\x98Ê\x87\x8d'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xf0\xe1Vt\x16\xa7\x8bD\xa6\xe6\x03\xbb\x98\xca\x87\x8d')
'PRIV:WM/WMCollectionID:ðáVt\x16§\x8bD¦æ\x03»\x98Ê\x87\x8d'  PRIV(owner='WM/WMCollectionID', data=b'\xf0\xe1Vt\x16\xa7\x8bD\xa6\xe6\x03\xbb\x98\xca\x87\x8d')
'PRIV:WM/WMContentID:kê\x0bDÆíYA\x88ÆG,Òï\x0f\x1e'  PRIV(owner='WM/WMContentID', data=b'k\xea\x0bD\xc6\xedYA\x88\xc6G,\xd2\xef\x0f\x1e')
'TALB' (Album/Movie/Show title)                     'Dangerous'
'TBPM' (BPM (beats per minute))                     '108.529'
'TCOM' (Composer)                                   'Michael Jackson/Teddy Riley'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         "Can't Let Her Get Away"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '298893'
'TPE1' (Lead performer(s)/Soloist(s))               'Michael Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Michael Jackson'
'TPUB' (Publisher)                                  'Epic'
'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'                                  ['hip hop', 'rock', 'pop', 'synth-pop', 'rhythm & blues', 'pop rock']
'TXXX:lastfmtags'                                   ['80s', 'dance', 'rock', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+3.10 dB'
'TXXX:replaygain_track_peak'                        '0.303582'

========================== row from database ==========================
                                              'id'  1503761
                                            'path'  /data/Music/Bulk/00poprockelectronic/Michael Jackson/Dangerous/06 Can_t Let Her Get Away.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  298
                                           'genre'  rock-unsorted
                                        'filesize'  12150969
                                           'mtime'  1621696412
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 Can_t rock unsorted
                                      'tag_artist'  Michael Jackson
                                     'tag_release'  Dangerous
                                       'tag_title'  Can't Let Her Get Away
                                             'bpm'  108.529
                                    'search_title'  'away':7 'can':1 'cant':3 'get':6 'her':5 'let':4 't':2
                                   'search_artist'  'jackson':2 'michael':1
                                  'search_release'  'dangerous':1
                                     'search_rest'  '00poprockelectronic':1 'can':2 'rock':4 't':3 'unsorted':5
                                    'search_combo'  '00poprockelectronic':11 'away':7A 'can':1A,12 'cant':3A 'dangerous':10C 'get':6A 'her':5A 'jackson':9B 'let':4A 'michael':8B 'rock':14 't':2A,13 'unsorted':15
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'dance', 'rock', 'pop']
                                        'tag_date'  1992
                                     'discogstags'  ['hip hop', 'rock', 'pop', 'synth-pop', 'rhythm & blues', 'pop rock']

============================== file details ==============================
                                           'mtime'  1621696411.5388672  (2021-05-22 17:13:31)
                             'size'  12150969