======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '397'
                                          'artist'  'Uriah Heep'
                                     'text_people'  'David Byron/Mick Box'
                                         'release'  'progsoup 13'
                                           'title'  'Gipsy'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'hard rock', 'progressive rock', 'rock', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '31'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '87.144'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000005A3 00000000 00001D60'
'COMM:iTunNORM:eng'                                 (' 000005A3 00000000 00001D60 00000000 00053020 00000000 00005F34 00000000 '
 '0005304E 00000000')
'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')
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'PRIV:WM/WMCollectionGroupID:\x90G\x97ÑÜf\x8cM¢ÈU\x9b)©=å'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x90G\x97\xd1\xdcf\x8cM\xa2\xc8U\x9b)\xa9=\xe5')
'PRIV:WM/WMCollectionID:\x90G\x97ÑÜf\x8cM¢ÈU\x9b)©=å'  PRIV(owner='WM/WMCollectionID', data=b'\x90G\x97\xd1\xdcf\x8cM\xa2\xc8U\x9b)\xa9=\xe5')
'PRIV:WM/WMContentID:\x9aíàýP\x9c^D¹é\x11+³\x02\x86@'  PRIV(owner='WM/WMContentID', data=b'\x9a\xed\xe0\xfdP\x9c^D\xb9\xe9\x11+\xb3\x02\x86@')
'TALB' (Album/Movie/Show title)                     'progsoup 13'
'TBPM' (BPM (beats per minute))                     '87.144'
'TCOM' (Composer)                                   'David Byron/Mick Box'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Gipsy'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Uriah Heep'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Mercury'
'TRCK' (Track number/Position in set)               '31'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'hard rock', 'progressive rock', 'rock', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.84 dB'
'TXXX:replaygain_track_peak'                        '0.550234'

========================== row from database ==========================
                                              'id'  1415740
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 13/743 Uriah Heep - Gipsy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  397
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6366237
                                           'mtime'  1620736357
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 743 rock cppex progressive
                                      'tag_artist'  Uriah Heep
                                     'tag_release'  progsoup 13
                                       'tag_title'  Gipsy
                                             'bpm'  87.144
                                    'search_title'  'gipsy':1
                                   'search_artist'  'heep':2 'uriah':1
                                  'search_release'  'progsoup':1
                                     'search_rest'  '743':3 'classicprogpsy':1 'cppex':5 'progressive':6 'progsoup':2 'rock':4
                                    'search_combo'  '743':7 'classicprogpsy':5 'cppex':9 'gipsy':1A 'heep':3B 'progressive':10 'progsoup':4C,6 'rock':8 'uriah':2B
                                    'tag_tracknum'  31
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'hard rock', 'progressive rock', 'rock', '70s']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736357.148327  (2021-05-11 14:32:37)
                             'size'  6366237