======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '185'
                                          'artist'  'Blind Willie Johnson'
                                     'text_people'  ''
                                         'release'  'The World Is Going Wrong'
                                           'title'  'Everybody Ought to Treat a Stranger Right'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'classic blues', 'delta blues', 'folk', 'gospel']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '126.885'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'The World Is Going Wrong'
'TBPM' (BPM (beats per minute))                     '126.885'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Everybody Ought to Treat a Stranger Right'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Blind Willie Johnson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'classic blues', 'delta blues', 'folk', 'gospel']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.24 dB'
'TXXX:replaygain_track_peak'                        '0.678355'

========================== row from database ==========================
                                              'id'  701375
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/various artists - the world is going wrong/blind willie johnson - the world is going wrong - 02 everybody ought to treat a stranger right.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  185
                                           'genre'  loc-namerica-country
                                        'filesize'  7491258
                                           'mtime'  1621628498
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country various artists the world is going wrong blind willie johnson the world is going wrong 02 everybody ought treat stranger right loc namerica country
                                      'tag_artist'  Blind Willie Johnson
                                     'tag_release'  The World Is Going Wrong
                                       'tag_title'  Everybody Ought to Treat a Stranger Right
                                             'bpm'  126.885
                                    'search_title'  'a':5 'everybody':1 'ought':2 'right':7 'stranger':6 'to':3 'treat':4
                                   'search_artist'  'blind':1 'johnson':3 'willie':2
                                  'search_release'  'going':4 'is':3 'the':1 'world':2 'wrong':5
                                     'search_rest'  'artists':6 'blind':12 'country':4 'everybody':15 'exotica':2 'going':10 'is':9 'jazz':1 'johnson':14 'loc':20 'namerica':21 'oldies':3 'ought':16 'right':19 'stranger':18 'the':7 'treat':17 'various':5 'willie':13 'world':8 'wrong':11
                                    'search_combo'  'a':5A 'artists':21 'blind':8B,27 'country':19 'everybody':1A,30 'exotica':17 'going':14C,25 'is':13C,24 'jazz':16 'johnson':10B,29 'loc':35 'namerica':36 'oldies':18 'ought':2A,31 'right':7A,34 'stranger':6A,33 'the':11C,22 'to':3A 'treat':4A,32 'various':20 'willie':9B,28 'world':12C,23 'wrong':15C,26
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'classic blues', 'delta blues', 'folk', 'gospel']
                                        'tag_date'  2016
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1621628498.1490302  (2021-05-21 22:21:38)
                             'size'  7491258