======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '155'
                                          'artist'  'Breda  Jazz'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Charleston is the best dance'
                                           'quals'  ("['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', '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'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb'
                                             'bpm'  '126.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '126.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb'
'TIT2' (Title/songname/content description)         'Charleston is the best dance'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Breda  Jazz'
'TXXX:MusicMagic Data'                              'AgEAAAAAgzCjPrXEhLZVHwFEgAGAXIB1FWesvt9NgAH3voABgAEdmsHpgAHlq4DLiAyAAbr84vDf84ABgAGUJBWV7A+005ypgAKAAYQupTOryYK5HdIxIIABgTCCdRwArVT694Gv8niAAYLzI3/CQoAh3qmN/ITCgAHNoPDk5hSIaoABsJMWJOCsuBSsHoACgAE='
'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'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.574301'

========================== row from database ==========================
                                              'id'  1495476
                                            'path'  /data/Music/Other/Pa/Dixieland/Breda  Jazz/Charleston is the best dance.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  155
                                           'genre'  prerock-jb
                                        'filesize'  3123097
                                           'mtime'  1678985135
                                   'redo_metaread'  0
                                        'rest_str'   Pa Dixieland prerock jb
                                      'tag_artist'  Breda  Jazz
                                     'tag_release'  None
                                       'tag_title'  Charleston is the best dance
                                             'bpm'  126.8
                                    'search_title'  'best':4 'charleston':1 'dance':5 'is':2 'the':3
                                   'search_artist'  'breda':1 'jazz':2
                                  'search_release'  
                                     'search_rest'  'dixieland':2 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'best':4A 'breda':6B 'charleston':1A 'dance':5A 'dixieland':9 'is':2A 'jazz':7B 'jb':11 'pa':8 'prerock':10 'the':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', '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'  1678985134.6326768  (2023-03-16 17:45:34)
                             'size'  3123097