======================== unified (from filesystem) ========================
                                         'bitrate'  '193.372'
                                        'duration'  '498'
                                          'artist'  'Electric Light Orchestra'
                                     'text_people'  ''
                                         'release'  'Progsoup 42'
                                           'title'  'From The Sun To The World (Boogie No. 1)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'british', '70s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '13'
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '115.655'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000621 000004BC 00001BB7'
'COMM:iTunNORM:eng'                                 (' 00000621 000004BC 00001BB7 000016D1 00019CDB 00065F2B 000067A6 00005D34 '
 '000637C6 0004FD9E')
'PRIV:AverageLevel:{\x1a\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1a\x00\x00')
'PRIV:PeakValue:!z\x00\x00'                         PRIV(owner='PeakValue', data=b'!z\x00\x00')
'TALB' (Album/Movie/Show title)                     'Progsoup 42'
'TBPM' (BPM (beats per minute))                     '115.655'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1973'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Tryb pewny)'
'TIT2' (Title/songname/content description)         'From The Sun To The World (Boogie No. 1)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Electric Light Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20/13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'british', '70s', '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'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.539641'

========================== row from database ==========================
                                              'id'  1416773
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 42/2442 electric light orchestra  - from the sun to the world.mp3
                                         'working'  None
                                         'bitrate'  193
                                    'duration_sec'  498
                                           'genre'  rock-cppex-progressive
                                        'filesize'  12063348
                                           'mtime'  1620737401
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2442 electric light orchestra from the sun to the world rock cppex progressive
                                      'tag_artist'  Electric Light Orchestra
                                     'tag_release'  Progsoup 42
                                       'tag_title'  From The Sun To The World (Boogie No. 1)
                                             'bpm'  115.655
                                    'search_title'  '1':10,11 'boogie':6,7 'from':1 'no':8,9 'sun':3 'the':2 'to':4 'world':5
                                   'search_artist'  'electric':1 'light':2 'orchestra':3
                                  'search_release'  '42':2 'progsoup':1
                                     'search_rest'  '2442':3 'classicprogpsy':1 'cppex':13 'electric':4 'from':7 'light':5 'orchestra':6 'progressive':14 'progsoup':2 'rock':12 'sun':9 'the':8 'to':10 'world':11
                                    'search_combo'  '1':10A,11A '2442':19 '42':16C 'boogie':6A,7A 'classicprogpsy':17 'cppex':29 'electric':12B,20 'from':1A,23 'light':13B,21 'no':8A,9A 'orchestra':14B,22 'progressive':30 'progsoup':15C,18 'rock':28 'sun':3A,25 'the':2A,24 'to':4A,26 'world':5A,27
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', '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-PLAY-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'british', '70s', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737400.6838899  (2021-05-11 14:50:00)
                             'size'  12063348