======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '300'
                                          'artist'  'George Lewis Jazz Band'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Down by the riverside'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', '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'  '87.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '87.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz'
'TIT2' (Title/songname/content description)         'Down by the riverside'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'George Lewis Jazz Band'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AQEAAAAAg5ukf4pDgGrhECxwgAGAm4giCxWoRuXKgAH/faSTgvMTrMZlgAHBmoL+gVqAAcALv1rxyoABgAGVFAmg3V+vyqDPgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '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'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.429130'

========================== row from database ==========================
                                              'id'  1495511
                                            'path'  /data/Music/Other/Pa/Jazz/George Lewis JB/Down by the riverside.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  300
                                           'genre'  prerock-jb-jazz
                                        'filesize'  6010868
                                           'mtime'  1678988474
                                   'redo_metaread'  0
                                        'rest_str'   Pa JB prerock jb jazz
                                      'tag_artist'  George Lewis Jazz Band
                                     'tag_release'  None
                                       'tag_title'  Down by the riverside
                                             'bpm'  87.6
                                    'search_title'  'by':2 'down':1 'riverside':4 'the':3
                                   'search_artist'  'band':4 'george':1 'jazz':3 'lewis':2
                                  'search_release'  
                                     'search_rest'  'jazz':4 'jb':2 'pa':1 'prerock':3
                                    'search_combo'  'band':8B 'by':2A 'down':1A 'george':5B 'jazz':7B,12 'jb':10 'lewis':6B 'pa':9 'prerock':11 'riverside':4A 'the':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', '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'  1678988474.2545235  (2023-03-16 18:41:14)
                             'size'  6010868