======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '162'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Jugband'
                                           'quals'  ("['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', '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'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz'
                                             'bpm'  '127.1'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz'
'TIT2' (Title/songname/content description)         'Jugband'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWNRHgvChlJPVgVMVvU94gAGDkIDpD9ilsCb9gTbUJIABheQa5rXGgAH8joEFgVeAAcZj5PDsH4ABgAG1Xg8hCeakN65GgAKAAZNEpjGvAYL9AVQ2Ra/rgxqEauuYmok2BZaG5nOReYQN6x61qaXC2XmiFIT8gV/WvsEv8TXA7IL0xHL8iffwora6i5Jcgp4='
'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'                                      '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'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.516264'

========================== row from database ==========================
                                              'id'  1495216
                                            'path'  /data/Music/Other/Pa/Jazz/Jugband.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  162
                                           'genre'  prerock-jb-jazz
                                        'filesize'  3265632
                                           'mtime'  1678988616
                                   'redo_metaread'  0
                                        'rest_str'   Pa Jazz prerock jb jazz
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  Jugband
                                             'bpm'  127.1
                                    'search_title'  'jugband':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  'jazz':2 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'jazz':5 'jb':7 'jugband':1A 'pa':4 'prerock':6 'unknown':2B,3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', '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']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678988615.8456507  (2023-03-16 18:43:35)
                             'size'  3265632