======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '161'
                                          'artist'  'Jerry Lee Lewis'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Breathless'
                                           'quals'  ("['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-4', 'Q-CHART-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  ("['rockabilly', 'rock and roll', 'rock n roll', 'oldies', '50s', 'classic "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-rnb'
                                             'bpm'  '114.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '114.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-rnb'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'Breathless'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jerry Lee Lewis'
'TRCK' (Track number/Position in set)               '16'
'TXXX:MusicMagic Data'                              'AgEBBz/2g0CWBcwUh6NdLy6JgAGCLYwy1OCiM0MwjQ3ml4ABheTbbLN0zyHpcqebi1CAAcr+iq0JnKsggAGv2uzZ/vOkW7fdkkqAAY9rn3myOYQBBdce+4QzhQqLX/XOp0QuPYl9/ZOGGo82/KW126JJqTy1A4LqhhoKd6EdKOOcB5QHsy36cuYwusHZYIgYgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '0000123f00006a06080b58cf4bce929fb6fb13420e63ebe1f25af308bb18d3b6c709d3bb630d8248f30d47f9ffbb3332ba03737efde33b34d05faf2ccdd30b928417673fcf7f2e3de0a315b9df7c2f4bf43f1375b13fcb303033282cc5dd4f00c2732f5ed03e821f7f3cf5f613f322bed71776b8a0db223ea72301333ccacf4c63bc3f03bfb402ecfffdbc132f3d935d035564bfc7223a3cc2a307704f3f6ea71fb8612ff3bf1fb81f33243ca4828f408fbb0c1062fe101a9b7c027d57fc27b9520bbbf2c81ca27d70fcbcf188990b32d23e0e306f7324bdd48e0bcfdf3c808eb073c2273ffcdcbbc827f03cbcf72f8b36b702dff8fc0afdb60b3f0ff3fcffeffe9f7cfc0c135cfb300b1033f922ca7bcf6c08cc23ac44f3bb3c0bfffff8c6610f2c00073f37be0ff2db2fb51f6b77f2e03f7fb4c0ab06718c3f3204cf0d0f28eeb31f70cd7c3210bffdbcfb3eef376708d252ba31ef657b038feab33d0d8302033d973417fcdb3d978258178204d36e08975d65e04f7413c129665e19934e03d35e05e056d5d3b268105d76d54d88204d75f4d342e59654d54d088f5e05e06d05c9c939505d7400'
'TXXX:lastfmtags'                                   ['rockabilly', 'rock and roll', 'rock n roll', 'oldies', '50s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.71 dB'
'TXXX:replaygain_track_peak'                        '0.819618'

========================== row from database ==========================
                                              'id'  1495538
                                            'path'  /data/Music/Other/Pa/R & B/Jerry Lee Lewis/Breathless.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  161
                                           'genre'  prerock-rnb
                                        'filesize'  3238073
                                           'mtime'  1621703183
                                   'redo_metaread'  0
                                        'rest_str'   Pa R & prerock rnb
                                      'tag_artist'  Jerry Lee Lewis
                                     'tag_release'  None
                                       'tag_title'  Breathless
                                             'bpm'  114.2
                                    'search_title'  'breathless':1
                                   'search_artist'  'jerry':1 'lee':2 'lewis':3
                                  'search_release'  
                                     'search_rest'  'pa':1 'prerock':3 'r':2 'rnb':4
                                    'search_combo'  'breathless':1A 'jerry':2B 'lee':3B 'lewis':4B 'pa':5 'prerock':7 'r':6 'rnb':8
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-3', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['rockabilly', 'rock and roll', 'rock n roll', 'oldies', '50s', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621703183.418046  (2021-05-22 19:06:23)
                             'size'  3238073