======================== unified (from filesystem) ========================
                                         'bitrate'  '200.019'
                                        'duration'  '638'
                                          'artist'  'Led Zeppelin'
                                     'text_people'  ''
                                         'release'  'progsoup 14'
                                           'title'  'No Quarter'
                                           '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-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', 'rock', 'progressive rock', '70s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36'
                                      'tracktotal'  '10'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '130.734'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '[www.pctrecords.com]'
'COMM:ID3v1 Comment:XXX'                            '[www.pctrecords.com]'
'PRIV:http://www.cdtag.com:\x02\x00È_|\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xc8_|\x00')
'TALB' (Album/Movie/Show title)                     'progsoup 14'
'TBPM' (BPM (beats per minute))                     '130.734'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2007-11-19'
'TIT2' (Title/songname/content description)         'No Quarter'
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Led Zeppelin'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Atlantic'
'TRCK' (Track number/Position in set)               '36/10'
'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:Release Type'                                 'No Tag'
'TXXX:Rip Date'                                     '2007-11-16'
'TXXX:Source'                                       'Remastered'
'TXXX:lastfmtags'                                   ['hard rock', 'rock', 'progressive rock', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.462595'

========================== row from database ==========================
                                              'id'  1415194
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 14/810 led zeppelin - no quarter.mp3
                                         'working'  None
                                         'bitrate'  200
                                    'duration_sec'  638
                                           'genre'  rock-cppex-progressive
                                        'filesize'  15967399
                                           'mtime'  1620736459
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 810 led zeppelin no quarter rock cppex progressive
                                      'tag_artist'  Led Zeppelin
                                     'tag_release'  progsoup 14
                                       'tag_title'  No Quarter
                                             'bpm'  130.734
                                    'search_title'  'no':1 'quarter':2
                                   'search_artist'  'led':1 'zeppelin':2
                                  'search_release'  'progsoup':1
                                     'search_rest'  '810':3 'classicprogpsy':1 'cppex':9 'led':4 'no':6 'progressive':10 'progsoup':2 'quarter':7 'rock':8 'zeppelin':5
                                    'search_combo'  '810':8 'classicprogpsy':6 'cppex':14 'led':3B,9 'no':1A,11 'progressive':15 'progsoup':5C,7 'quarter':2A,12 'rock':13 'zeppelin':4B,10
                                    'tag_tracknum'  36
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['hard rock', 'rock', 'progressive rock', '70s', 'classic rock']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736459.2506316  (2021-05-11 14:34:19)
                             'size'  15967399