======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '206'
                                          'artist'  'Jimmy Reed'
                                     'text_people'  ''
                                         'release'  'Jimmy Reed'
                                           'title'  'Outskirts of town'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-3', "
 "'q-other-4', 'q-piano-1', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '132.7'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Jimmy Reed'
'TBPM' (BPM (beats per minute))                     '132.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Outskirts of town'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Reed'
'TPE2' (Band/orchestra/accompaniment)               'Jimmy Reed'
'TRCK' (Track number/Position in set)               '12'
'TXXX:MusicMagic Data'                              'AgEBYgk9p8KWTseehGsddOg2gAGAjIl92k+iy/w1gHsO84ABjrjrdbOTgAHZqJz6iwGAAcTehkW9roABgAGvrvlY5giw/q4FgAKAAZwNmGCsIIOr+D0zWYing7SHrPNMooEz8IZJ4wie+oPjBRWyFZhc2xqWZYH0gZDNuJO37oGnvYCdtj/70PEwscCzcoQIgDg='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.946450'

========================== row from database ==========================
                                              'id'  1495513
                                            'path'  /data/Music/Other/Pa/Blues/Jimmy Reed/Outskirts of town.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  206
                                           'genre'  prerock-jb-blues
                                        'filesize'  4130836
                                           'mtime'  1621094224
                                   'redo_metaread'  0
                                        'rest_str'   Pa Blues prerock jb blues
                                      'tag_artist'  Jimmy Reed
                                     'tag_release'  Jimmy Reed
                                       'tag_title'  Outskirts of town
                                             'bpm'  132.7
                                    'search_title'  'of':2 'outskirts':1 'town':3
                                   'search_artist'  'jimmy':1 'reed':2
                                  'search_release'  'jimmy':1 'reed':2
                                     'search_rest'  'blues':2 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'blues':9 'jb':11 'jimmy':4B,6C 'of':2A 'outskirts':1A 'pa':8 'prerock':10 'reed':5B,7C 'town':3A
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-3', 'Q-UNU-1', 'q-drums-3', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094223.761436  (2021-05-15 17:57:03)
                             'size'  4130836