======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '302'
                                          'artist'  'Stacey Kent'
                                     'text_people'  'J. Tomlinson/K. Ishiguro'
                                         'release'  'radio jazz 13'
                                           'title'  'So Romantic'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-3', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['female vocalists', 'smooth jazz', 'jazz', 'vocal jazz', 'jazz vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '125.0'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x006\x001\x008\x002\x00+\x00A\x005\x000\x001\x00+\x00E\x000\x008\x00E\x00+\x001\x002\x009\x008\x007\x00+\x001\x007\x000\x00B\x004\x00+\x001\x00B\x004\x00D\x009\x00+\x002\x001\x00D\x004\x00F\x00+\x002\x006\x00F\x00C\x00E\x00+\x002\x00C\x008\x008\x000\x00+\x003\x001\x00D\x00F\x003\x00+\x003\x004\x00F\x00D\x00D\x00+\x003\x009\x00E\x001\x003\x00\x00\x00')
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128)
'PRIV:AverageLevel:{\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x13\x00\x00')
'PRIV:PeakValue:¡z\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1z\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 \x001\x002\x000\x007\x005\x000\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x002\x004\x007\x006\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x002\x002\x006\x009\x003\x002\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x002\x000\x007\x005\x000\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x002\x002\x004\x007\x006\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x002\x002\x006\x009\x003\x002\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:WÃ5\x7f¦Y\x17B±dz\x0b\x8f¦AÌ'  PRIV(owner='WM/WMCollectionGroupID', data=b'W\xc35\x7f\xa6Y\x17B\xb1dz\x0b\x8f\xa6A\xcc')
'PRIV:WM/WMCollectionID:WÃ5\x7f¦Y\x17B±dz\x0b\x8f¦AÌ'  PRIV(owner='WM/WMCollectionID', data=b'W\xc35\x7f\xa6Y\x17B\xb1dz\x0b\x8f\xa6A\xcc')
'PRIV:WM/WMContentID:k{п²ûÉL®7Úîûõ¾I'              PRIV(owner='WM/WMContentID', data=b'k{\xd0\xbf\xb2\xfb\xc9L\xae7\xda\xee\xfb\xf5\xbeI')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCMP'                                              '0'
'TCOM' (Composer)                                   'J. Tomlinson/K. Ishiguro'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'So Romantic'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '302746'
'TPE1' (Lead performer(s)/Soloist(s))               'Stacey Kent'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Blue Note'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'smooth jazz', 'jazz', 'vocal jazz', 'jazz vocal']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-3.35 dB'
'TXXX:replaygain_track_peak'                        '0.957916'

========================== row from database ==========================
                                              'id'  1482095
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Stacey Kent - so romantic.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  302
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  12142234
                                           'mtime'  1620541556
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic so romantic prerock jb unsorted
                                      'tag_artist'  Stacey Kent
                                     'tag_release'  radio jazz 13
                                       'tag_title'  So Romantic
                                             'bpm'  125.0
                                    'search_title'  'romantic':2 'so':1
                                   'search_artist'  'kent':2 'stacey':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':5 'prerock':4 'romantic':3 'so':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':7 'jazz':6C 'jb':11 'kent':4B 'prerock':10 'radio':5C 'romantic':2A,9 'so':1A,8 'stacey':3B 'unsorted':12
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['female vocalists', 'smooth jazz', 'jazz', 'vocal jazz', 'jazz vocal']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541556.0633812  (2021-05-09 08:25:56)
                             'size'  12142234