======================== unified (from filesystem) ========================
                                         'bitrate'  '160.002'
                                        'duration'  '683'
                                          'artist'  'Weird Al Yankovic'
                                     'text_people'  ''
                                         'release'  'Running With Scissors'
                                           'title'  'Albuquerque'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '125.0'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:eng'                            'ogg had 160 kbps 44100 Hz'
'TALB' (Album/Movie/Show title)                     'Running With Scissors'
'TBPM' (BPM (beats per minute))                     '125.0'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Albuquerque'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Weird Al Yankovic'
'TRCK' (Track number/Position in set)               '12'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'

========================== row from database ==========================
                                              'id'  1538487
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Weird Al Yankovic/Albuquerque.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  683
                                           'genre'  
                                        'filesize'  13685624
                                           'mtime'  1662800591
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing]
                                      'tag_artist'  Weird Al Yankovic
                                     'tag_release'  Running With Scissors
                                       'tag_title'  Albuquerque
                                             'bpm'  125.0
                                    'search_title'  'albuquerque':1
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'running':1 'scissors':3 'with':2
                                     'search_rest'  '9amusing':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '9amusing':9,10 'al':3B 'albuquerque':1A 'prev':11 'prevset':8 'running':5C 'scissors':7C 'set':12 'weird':2B 'with':6C 'yankovic':4B
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800590.9155385  (2022-09-10 11:03:10)
                             'size'  13685624