======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '166'
                                          'artist'  'Ballyhooligans'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'Q-PIANO-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-vocals-3', 'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '108.762'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:XMP:\n\n \n  \n  \n \n\n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                     \n'  PRIV(owner='XMP', data=b'<?xpacket begin="\xef\xbb\xbf" id="W5M0MpCehiHzreSzNTczkc9d"?>\n<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="3.1.2-113">\n <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n  <rdf:Description rdf:about=""\n    xmlns:xmpDM="http://ns.adobe.com/xmp/1.0/DynamicMedia/"\n   xmpDM:genre="Other"\n   xmpDM:audioSampleRate="44100"\n   xmpDM:audioSampleType="16-bit"\n   xmpDM:audioChannelType="1"\n   xmpDM:audioCompressor=""\n   xmpDM:duration="2:46.519"\n   xmpDM:loop="False"\n   xmpDM:numberOfBeats="333"\n   xmpDM:key="C"\n   xmpDM:tempo="120"\n   xmpDM:stretchMode="Fixed Length"\n   xmpDM:relativeTimestamp="">\n  </rdf:Description>\n </rdf:RDF>\n</x:xmpmeta>\n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                                                                                                    \n                     \n<?xpacket end="w"?>')
'TBPM' (BPM (beats per minute))                     '108.762'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ballyhooligans'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.595243'

========================== row from database ==========================
                                              'id'  1291459
                                            'path'  /data/Music/Bulk/00poprockelectronic/misc/Ballyhooligans - I´m Nuts About Screwy Music (1936).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  166
                                           'genre'  
                                        'filesize'  2669826
                                           'mtime'  1652398010
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic misc I´m Nuts About Screwy Music (1936)
                                      'tag_artist'  Ballyhooligans
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  108.762
                                    'search_title'  None
                                   'search_artist'  'ballyhooligans':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1936':11,12 'about':8 'i':3,5 'm':4,6 'misc':2 'music':10 'nuts':7 'screwy':9
                                    'search_combo'  '00poprockelectronic':2 '1936':12,13 'about':9 'ballyhooligans':1B 'i':4,6 'm':5,7 'misc':3 'music':11 'nuts':8 'screwy':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'Q-PIANO-2', 'q-chart-2', 'q-drums-2', 'q-other-4', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652398009.7837265  (2022-05-13 01:26:49)
                             'size'  2669826