======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '400'
                                          'artist'  'Rev. Gary Davis'
                                     'text_people'  ''
                                         'release'  'The World Is Going Wrong'
                                           'title'  'Babylon Is Falling'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', '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-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['blues', 'gospel', 'country blues', 'folk', 'guitar']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '142.910'
                                             'key'  '12B'
                                        '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))                     '142.910'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Babylon Is Falling'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rev. Gary Davis'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12'
'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', 'gospel', 'country blues', 'folk', 'guitar']
'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'                        '+1.71 dB'
'TXXX:replaygain_track_peak'                        '0.359007'

========================== row from database ==========================
                                              'id'  714133
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/various artists - the world is going wrong/rev. gary davis - the world is going wrong - 12 babylon is falling.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  400
                                           'genre'  loc-namerica-country
                                        'filesize'  16120026
                                           'mtime'  1621628498
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country various artists the world going wrong rev. gary davis the world going wrong 12 babylon falling loc namerica country
                                      'tag_artist'  Rev. Gary Davis
                                     'tag_release'  The World Is Going Wrong
                                       'tag_title'  Babylon Is Falling
                                             'bpm'  142.91
                                    'search_title'  'babylon':1 'falling':3 'is':2
                                   'search_artist'  'davis':4 'gary':3 'rev':1,2
                                  'search_release'  'going':4 'is':3 'the':1 'world':2 'wrong':5
                                     'search_rest'  'artists':6 'babylon':15 'country':4 'davis':14 'exotica':2 'falling':16 'gary':13 'going':9 'jazz':1 'loc':17 'namerica':18 'oldies':3 'rev':11,12 'the':7 'various':5 'world':8 'wrong':10
                                    'search_combo'  'artists':18 'babylon':1A,27 'country':16 'davis':7B,26 'exotica':14 'falling':3A,28 'gary':6B,25 'going':11C,21 'is':2A,10C 'jazz':13 'loc':29 'namerica':30 'oldies':15 'rev':4B,5B,23,24 'the':8C,19 'various':17 'world':9C,20 'wrong':12C,22
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  12B
                                           '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', 'gospel', 'country blues', 'folk', 'guitar']
                                        'tag_date'  2016
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1621628498.2353327  (2021-05-21 22:21:38)
                             'size'  16120026