======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '156'
                                          'artist'  'Little Buddy Doyle'
                                     'text_people'  ''
                                         'release'  ('Masters Of The Memphis Blues (1928-39) - Disc D (Robert Wilkins & Little '
 'Buddy Doyle)')
                                           'title'  "Hard Scuffin' Blues"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'blues', 'the vitamin b12', 'all']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '105.258'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     ('Masters Of The Memphis Blues (1928-39) - Disc D (Robert Wilkins & Little '
 'Buddy Doyle)')
'TBPM' (BPM (beats per minute))                     '105.258'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         "Hard Scuffin' Blues"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '000000156930'
'TPE1' (Lead performer(s)/Soloist(s))               'Little Buddy Doyle'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['spotify', 'blues', 'the vitamin b12', 'all']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.349052'

========================== row from database ==========================
                                              'id'  1510944
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Masters Of Memphis Blues - Disc D (Robert Wilkins & Little Buddy Doyle) 192Kbps/18 - Little Buddy Doyle - Hard Scuffin_ Blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  156
                                           'genre'  prerock-jb-blues
                                        'filesize'  3764062
                                           'mtime'  1620402427
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 192Kbps 18 Scuffin_ prerock jb blues
                                      'tag_artist'  Little Buddy Doyle
                                     'tag_release'  Masters Of The Memphis Blues (1928-39) - Disc D (Robert Wilkins & Little Buddy Doyle)
                                       'tag_title'  Hard Scuffin' Blues
                                             'bpm'  105.258
                                    'search_title'  'blues':4 'hard':1 'scuffin':2,3
                                   'search_artist'  'buddy':2 'doyle':3 'little':1
                                  'search_release'  '1928':6 '192839':8 '39':7 'blues':5 'buddy':15 'd':10 'disc':9 'doyle':16,17 'little':14 'masters':1 'memphis':4 'of':2 'robert':11,12 'the':3 'wilkins':13
                                     'search_rest'  '18':6 '192kbps':5 'blues':10 'country':4 'exotica':2 'jazz':1 'jb':9 'oldies':3 'prerock':8 'scuffin':7
                                    'search_combo'  '18':30 '1928':13C '192839':15C '192kbps':29 '39':14C 'blues':4A,12C,34 'buddy':6B,22C 'country':28 'd':17C 'disc':16C 'doyle':7B,23C,24C 'exotica':26 'hard':1A 'jazz':25 'jb':33 'little':5B,21C 'masters':8C 'memphis':11C 'of':9C 'oldies':27 'prerock':32 'robert':18C,19C 'scuffin':2A,3A,31 'the':10C 'wilkins':20C
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spotify', 'blues', 'the vitamin b12', 'all']
                                        'tag_date'  2004
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620402427.2187836  (2021-05-07 17:47:07)
                             'size'  3764062