<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '144'
                                          'artist'  'Little Joe &amp; The Thrillers'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Peanuts And Popcorn (Enjoy, 1964)'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'rock and roll', '50s', 'doo wop', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '146.000'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f17f0>

'PRIV:AverageLevel:{\x0e\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0e\x00\x00')
'PRIV:PeakValue:¡f\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1f\x00\x00')
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Peanuts And Popcorn (Enjoy, 1964)'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Little Joe &amp; The Thrillers'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'rock and roll', '50s', 'doo wop', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.475716'

========================== row from database ==========================
                                              'id'  736021
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Little Joe & The Thrillers - Peanuts And Popcorn (Enjoy, 1964).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  144
                                           'genre'  set-th-candy
                                        'filesize'  2319172
                                           'mtime'  1620343119
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Little Joe & The Thrillers
                                     'tag_release'  sweets
                                       'tag_title'  Peanuts And Popcorn (Enjoy, 1964)
                                             'bpm'  146.0
                                    'search_title'  '1964':6,7 'and':2 'enjoy':4,5 'peanuts':1 'popcorn':3
                                   'search_artist'  'joe':2 'little':1 'the':3 'thrillers':4
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  '1964':6A,7A 'and':2A 'candy':19 'country':16 'enjoy':4A,5A 'exotica':14 'jazz':13 'joe':9B 'little':8B 'oldies':15 'peanuts':1A 'popcorn':3A 'set':17 'sweets':12C 'th':18 'the':10B 'thrillers':11B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['all', 'rock and roll', '50s', 'doo wop', 'oldies']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343118.991079  (2021-05-07 01:18:38)
                             'size'  2319172