======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '368'
                                          'artist'  'Procol Harum'
                                     'text_people'  'Gary Brooker/Keith Reid'
                                         'release'  'Progsoup 30'
                                           'title'  'Grand Hotel'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['60s', 'psychedelic rock', 'rock', 'progressive rock', 'psychedelic', "
 "'classic rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '93'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '123.106'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:C\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'C\x19\x00\x00')
'PRIV:PeakValue:\x89~\x00\x00'                      PRIV(owner='PeakValue', data=b'\x89~\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 \x00 \x001\x005\x008\x005\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x008\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x002\x009\x002\x002\x003\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x005\x008\x005\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x008\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x002\x009\x002\x002\x003\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\xadÚx³O®\rCµ\x93fÛþä¡5'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xad\xdax\xb3O\xae\rC\xb5\x93f\xdb\xfe\xe4\xa15')
'PRIV:WM/WMCollectionID:\xadÚx³O®\rCµ\x93fÛþä¡5'    PRIV(owner='WM/WMCollectionID', data=b'\xad\xdax\xb3O\xae\rC\xb5\x93f\xdb\xfe\xe4\xa15')
'PRIV:WM/WMContentID:Ë\x16µ7\x0b¸§@\x87\x81\x83o¬\x96@é'  PRIV(owner='WM/WMContentID', data=b'\xcb\x16\xb57\x0b\xb8\xa7@\x87\x81\x83o\xac\x96@\xe9')
'TALB' (Album/Movie/Show title)                     'Progsoup 30'
'TBPM' (BPM (beats per minute))                     '123.106'
'TCOM' (Composer)                                   'Gary Brooker/Keith Reid'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Grand Hotel'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '368560'
'TPE1' (Lead performer(s)/Soloist(s))               'Procol Harum'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Japanese Victor Co.'
'TRCK' (Track number/Position in set)               '93'
'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'                                   ['60s',
 'psychedelic rock',
 'rock',
 'progressive rock',
 'psychedelic',
 'classic rock']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.02 dB'
'TXXX:replaygain_track_peak'                        '0.509185'

========================== row from database ==========================
                                              'id'  1413010
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 30 (hitsoup)/1759 procol harum - grand hotel.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  368
                                           'genre'  rock-cppex-progressive
                                        'filesize'  11783697
                                           'mtime'  1620737125
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (hitsoup) 1759 procol harum grand hotel rock cppex progressive
                                      'tag_artist'  Procol Harum
                                     'tag_release'  Progsoup 30
                                       'tag_title'  Grand Hotel
                                             'bpm'  123.106
                                    'search_title'  'grand':1 'hotel':2
                                   'search_artist'  'harum':2 'procol':1
                                  'search_release'  '30':2 'progsoup':1
                                     'search_rest'  '1759':5 'classicprogpsy':1 'cppex':11 'grand':8 'harum':7 'hitsoup':3,4 'hotel':9 'procol':6 'progressive':12 'progsoup':2 'rock':10
                                    'search_combo'  '1759':11 '30':6C 'classicprogpsy':7 'cppex':17 'grand':1A,14 'harum':4B,13 'hitsoup':9,10 'hotel':2A,15 'procol':3B,12 'progressive':18 'progsoup':5C,8 'rock':16
                                    'tag_tracknum'  93
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737124.6735194  (2021-05-11 14:45:24)
                             'size'  11783697