======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '163'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Adeline waltz'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-1', 'q-vocals-3', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '84.2'
                                             'key'  'B m'  (10A)
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '84.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TIT2' (Title/songname/content description)         'Adeline waltz'
'TKEY' (Initial key)                                'B m'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:MusicMagic Data'                              'AgEAAAAAgWqv1Iu1gOjY4UMMgAGGxYDp9oCbgwBmgAHDiIABgAHwqLRbgAHOY4ABgKyAAasXRp4E2YABgAGZWQOP3RqAAZczgAKAAYNcqfOM5YEfFZcmqIABh02FlAp3pgEgmYIg0QKAAYxED5uvaIAB2CiEa4FbhhrIeRUb9eqAAYABtNIJFd9Toyyt7IACgAE='
'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'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.411497'

========================== row from database ==========================
                                              'id'  1495615
                                            'path'  /data/Music/Other/Pa/All/Oldtime/Adeline waltz.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  163
                                           'genre'  prerock-unsorted
                                        'filesize'  3282848
                                           'mtime'  1644756103
                                   'redo_metaread'  0
                                        'rest_str'   Pa All Oldtime prerock unsorted
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  Adeline waltz
                                             'bpm'  84.2
                                    'search_title'  'adeline':1 'waltz':2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  'all':2 'oldtime':3 'pa':1 'prerock':4 'unsorted':5
                                    'search_combo'  'adeline':1A 'all':6 'oldtime':7 'pa':5 'prerock':8 'unknown':3B,4B 'unsorted':9 'waltz':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  B m
                                           'quals'  ['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1644756102.642287  (2022-02-13 13:41:42)
                             'size'  3282848