======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '731'
                                          'artist'  'KIMG CRIMSON'
                                     'text_people'  'Greg Lake/Ian McDonald/Michael Giles/Peter Sinfield/Robert Fripp'
                                         'release'  'Progsoup 34'
                                           'title'  'Moonchild'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '140.141'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'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/WMCollectionID:IÁï\xa0á;\x0fE\x83\x8c²ó1\x8c\x18o'  PRIV(owner='WM/WMCollectionID', data=b'I\xc1\xef\xa0\xe1;\x0fE\x83\x8c\xb2\xf31\x8c\x18o')
'PRIV:WM/WMContentID:j\x95n¯&îz@\x93&Ëûô\x89\x80M'  PRIV(owner='WM/WMContentID', data=b'j\x95n\xaf&\xeez@\x93&\xcb\xfb\xf4\x89\x80M')
'TALB' (Album/Movie/Show title)                     'Progsoup 34'
'TBPM' (BPM (beats per minute))                     '140.141'
'TCOM' (Composer)                                   'Greg Lake/Ian McDonald/Michael Giles/Peter Sinfield/Robert Fripp'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Moonchild'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'KIMG CRIMSON'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '04'
'TPUB' (Publisher)                                  'JVC Japan'
'TRCK' (Track number/Position in set)               '16'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.88 dB'
'TXXX:replaygain_track_peak'                        '0.819217'

========================== row from database ==========================
                                              'id'  1410401
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 34 (sixties prog)/1972 king crimson - Moonchild.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  731
                                           'genre'  rock-cppex-progressive
                                        'filesize'  17566606
                                           'mtime'  1620737210
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (sixties prog) 1972 king crimson rock cppex progressive
                                      'tag_artist'  KIMG CRIMSON
                                     'tag_release'  Progsoup 34
                                       'tag_title'  Moonchild
                                             'bpm'  140.141
                                    'search_title'  'moonchild':1
                                   'search_artist'  'crimson':2 'kimg':1
                                  'search_release'  '34':2 'progsoup':1
                                     'search_rest'  '1972':7 'classicprogpsy':1 'cppex':11 'crimson':9 'king':8 'prog':5,6 'progressive':12 'progsoup':2 'rock':10 'sixties':3,4
                                    'search_combo'  '1972':12 '34':5C 'classicprogpsy':6 'cppex':16 'crimson':3B,14 'kimg':2B 'king':13 'moonchild':1A 'prog':10,11 'progressive':17 'progsoup':4C,7 'rock':15 'sixties':8,9
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737210.151115  (2021-05-11 14:46:50)
                             'size'  17566606