======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '257'
                                          'artist'  'Michael Jackson'
                                     'text_people'  'Michael Jackson'
                                         'release'  'Thriller'
                                           'title'  'Beat It'
                                           '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-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'dance', 'rock', 'pop']"
                                     'discogstags'  "['funk / soul', 'pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '138.702'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000C6B 000009A0 00003F29'
'COMM:iTunNORM:eng'                                 (' 00000C6B 000009A0 00003F29 00003322 0002BF65 0002BF65 00008000 00008000 '
 '0001ADB0 0001FBFE')
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x005\x00+\x009\x006\x00+\x006\x00B\x000\x003\x00+\x00B\x007\x003\x00B\x00+\x00F\x008\x004\x00F\x00+\x001\x006\x001\x000\x00E\x00+\x001\x00A\x00C\x009\x008\x00+\x002\x000\x002\x00B\x005\x00+\x002\x004\x00A\x00B\x000\x00+\x002\x009\x000\x009\x005\x00+\x002\x00E\x008\x001\x007\x00+\x003\x001\x000\x008\x008\x00+\x003\x006\x005\x001\x005\x00+\x003\x008\x009\x007\x00A\x00+\x003\x00B\x002\x008\x00D\x00+\x003\x00E\x00A\x004\x009\x00+\x004\x003\x001\x007\x007\x00+\x004\x004\x00C\x009\x00B\x00+\x004\x007\x00F\x002\x002\x00+\x004\x00A\x001\x002\x003\x00+\x004\x00C\x004\x00C\x00D\x00+\x004\x00E\x004\x00E\x004\x00+\x004\x00F\x00B\x00B\x004\x00\x00\x00')
'PRIV:AverageLevel:l\x1f\x00\x00'                   PRIV(owner='AverageLevel', data=b'l\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 \x005\x005\x007\x002\x002\x009\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\x003\x007\x004\x008\x000\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\x002\x009\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\x003\x007\x004\x008\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ߧ\x16÷\x83o¾IºõMN\x1e\x12\x17e'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xdf\xa7\x16\xf7\x83o\xbeI\xba\xf5MN\x1e\x12\x17e')
'PRIV:WM/WMCollectionID:ߧ\x16÷\x83o¾IºõMN\x1e\x12\x17e'  PRIV(owner='WM/WMCollectionID', data=b'\xdf\xa7\x16\xf7\x83o\xbeI\xba\xf5MN\x1e\x12\x17e')
'PRIV:WM/WMContentID:\x98«ñHI\x00âH\x93×Þ¶ß\x041É'  PRIV(owner='WM/WMContentID', data=b'\x98\xab\xf1HI\x00\xe2H\x93\xd7\xde\xb6\xdf\x041\xc9')
'TALB' (Album/Movie/Show title)                     'Thriller'
'TBPM' (BPM (beats per minute))                     '138.702'
'TCOM' (Composer)                                   'Michael Jackson'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Beat It'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '257839'
'TPE1' (Lead performer(s)/Soloist(s))               'Michael Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Michael Jackson'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '5'
'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'                                  ['funk / soul', 'pop', 'disco']
'TXXX:lastfmtags'                                   ['80s', 'dance', 'rock', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.395224'

========================== row from database ==========================
                                              'id'  1292227
                                            'path'  /data/Music/Bulk/00poprockelectronic/Michael Jackson/Thriller/05 Beat It.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  257
                                           'genre'  rock-unsorted
                                        'filesize'  10307373
                                           'mtime'  1621696433
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 05 rock unsorted
                                      'tag_artist'  Michael Jackson
                                     'tag_release'  Thriller
                                       'tag_title'  Beat It
                                             'bpm'  138.702
                                    'search_title'  'beat':1 'it':2
                                   'search_artist'  'jackson':2 'michael':1
                                  'search_release'  'thriller':1
                                     'search_rest'  '00poprockelectronic':1 'rock':2 'unsorted':3
                                    'search_combo'  '00poprockelectronic':6 'beat':1A 'it':2A 'jackson':4B 'michael':3B 'rock':7 'thriller':5C 'unsorted':8
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  3A
                                           '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-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'dance', 'rock', 'pop']
                                        'tag_date'  2001
                                     'discogstags'  ['funk / soul', 'pop', 'disco']

============================== file details ==============================
                                           'mtime'  1621696433.3286128  (2021-05-22 17:13:53)
                             'size'  10307373