======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '173'
                                          'artist'  'Frank Sinatra'
                                     'text_people'  'Carolyn Leigh/Cy Coleman'
                                         'release'  'Sinatra 80th: All the Best Disc 2'
                                           'title'  'Witchcraft'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '111.886'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-064 POS 6'
'COMM:ID3v1 Comment:XXX'                            '58-064 POS 6'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x004\x00+\x00B\x006\x00+\x002\x00A\x006\x00C\x00+\x006\x00B\x00C\x001\x00+\x009\x00E\x006\x003\x00+\x00C\x005\x001\x00C\x00+\x00F\x007\x00F\x00D\x00+\x001\x002\x002\x00E\x00D\x00+\x001\x005\x00E\x00E\x003\x00+\x001\x009\x00B\x00C\x00C\x00+\x001\x00D\x000\x007\x00E\x00+\x002\x000\x003\x00E\x001\x00+\x002\x003\x006\x00E\x00F\x00+\x002\x006\x00F\x00A\x00C\x00+\x002\x009\x00F\x004\x002\x00+\x002\x00C\x00C\x000\x004\x00+\x003\x000\x000\x00F\x002\x00+\x003\x002\x001\x009\x005\x00+\x003\x007\x004\x00C\x001\x00+\x003\x00B\x00A\x00B\x00C\x00+\x003\x00E\x00B\x005\x009\x00+\x004\x002\x003\x00E\x009\x00\x00\x00')
'PRIV:AverageLevel:Ò\x0e\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xd2\x0e\x00\x00')
'PRIV:PeakValue:\x19p\x00\x00'                      PRIV(owner='PeakValue', data=b'\x19p\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 \x002\x002\x009\x003\x006\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x001\x005\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x004\x000\x004\x009\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x002\x009\x003\x006\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x001\x005\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x009\x004\x000\x004\x009\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x82\x1bÑzM86F\x8f»\x80$ÝW\x19ê'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x82\x1b\xd1zM86F\x8f\xbb\x80$\xddW\x19\xea')
'PRIV:WM/WMCollectionID:Ò\\%qÖ\x98"M£A\x86\x02\x9cõu¯'  PRIV(owner='WM/WMCollectionID', data=b'\xd2\\%q\xd6\x98"M\xa3A\x86\x02\x9c\xf5u\xaf')
'PRIV:WM/WMContentID:Sù\x1eù\x84\x86\x14M\x90>¸\x08\x8a\x0eº÷'  PRIV(owner='WM/WMContentID', data=b'S\xf9\x1e\xf9\x84\x86\x14M\x90>\xb8\x08\x8a\x0e\xba\xf7')
'TALB' (Album/Movie/Show title)                     'Sinatra 80th: All the Best Disc 2'
'TBPM' (BPM (beats per minute))                     '111.886'
'TCOM' (Composer)                                   'Carolyn Leigh/Cy Coleman'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Witchcraft'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '173666'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Sinatra'
'TPE2' (Band/orchestra/accompaniment)               'Frank Sinatra'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.520433'

========================== row from database ==========================
                                              'id'  1435334
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-064 - Frank Sinatra - Witchcraft.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  173
                                           'genre'  prerock-swing
                                        'filesize'  6944640
                                           'mtime'  1620562651
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 064 prerock swing
                                      'tag_artist'  Frank Sinatra
                                     'tag_release'  Sinatra 80th: All the Best Disc 2
                                       'tag_title'  Witchcraft
                                             'bpm'  111.886
                                    'search_title'  'witchcraft':1
                                   'search_artist'  'frank':1 'sinatra':2
                                  'search_release'  '2':8 '80th':2,3 'all':4 'best':6 'disc':7 'sinatra':1 'the':5
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':16 '1958':17 '2':11C '58':18 '80th':5C,6C 'all':7C 'best':9C 'country':15 'disc':10C 'exotica':13 'frank':2B 'jazz':12 'oldies':14 'prerock':19 'sinatra':3B,4C 'swing':20 'the':8C 'witchcraft':1A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562650.723101  (2021-05-09 14:17:30)
                             'size'  6944640