======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '119'
                                          'artist'  'Rachel Grimes'
                                     'text_people'  ''
                                         'release'  'Compound Leaves'
                                           'title'  'Far Light and Fog'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']"
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '140.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Compound Leaves'
'TBPM' (BPM (beats per minute))                     '140.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2013-03-12'
'TIT2' (Title/songname/content description)         'Far Light and Fog'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rachel Grimes'
'TPE2' (Band/orchestra/accompaniment)               'Rachel Grimes'
'TPOS' (Part of a set)                              '1'
'TRCK' (Track number/Position in set)               '08'
'TXXX:MD5'                                          '808f1dc8459eba46c0cb720b817bd774'
'TXXX:MusicBrainz Album Id'                         '044c2ee1-a06e-4383-b678-b733cb2b27f1'
'TXXX:MusicBrainz Artist Id'                        '5cd341c1-2b4b-4296-a5c8-147fcb7b2e4e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'classical'
'TXXX:lastfmtags'                                   ['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.660827'
'UFID:9a1ac5cc-5f12-45dd-8726-db7bf8ae606f'         UFID(owner='9a1ac5cc-5f12-45dd-8726-db7bf8ae606f', data=b'MusicBrainz Trackid')

========================== row from database ==========================
                                              'id'  1528042
                                            'path'  /data/Music/Bulk/00instruments-classical/Rachel Grimes _2013 _Compound Leaves_/08 Far Light and Fog.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  119
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  4879667
                                           'mtime'  1620561763
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical _2013 _Compound Leaves_ 08 prerock classical or classical instruments
                                      'tag_artist'  Rachel Grimes
                                     'tag_release'  Compound Leaves
                                       'tag_title'  Far Light and Fog
                                             'bpm'  140.8
                                    'search_title'  'and':3 'far':1 'fog':4 'light':2
                                   'search_artist'  'grimes':2 'rachel':1
                                  'search_release'  'compound':1 'leaves':2
                                     'search_rest'  '00instruments':1 '2013':3 'classical':2 'compound':4 'instruments':8 'leaves':5 'or':7 'prerock':6
                                    'search_combo'  '00instruments':9 '2013':11 'and':3A 'classical':10 'compound':7C,12 'far':1A 'fog':4A 'grimes':6B 'instruments':16 'leaves':8C,13 'light':2A 'or':15 'prerock':14 'rachel':5B
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'neoclassical', 'piano', 'cinematic', 'ambient']
                                        'tag_date'  2013
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1620561762.7786603  (2021-05-09 14:02:42)
                             'size'  4879667