======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '203'
                                          'artist'  'The Dresden Dolls'
                                     'text_people'  ''
                                         'release'  'Live Covers'
                                           'title'  'Baby One More Time ( Britney Spears)'
                                           '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'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Brechtian Punk Cabaret'
                                             'bpm'  '132.5'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Live Covers'
'TBPM' (BPM (beats per minute))                     '132.5'
'TCON' (Content type, a.k.a. Genre)                 'Brechtian Punk Cabaret'
'TIT2' (Title/songname/content description)         'Baby One More Time ( Britney Spears)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dresden Dolls'
'TRCK' (Track number/Position in set)               '0'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'

========================== row from database ==========================
                                              'id'  1538538
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Dresden Dolls/Baby One More Time.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  203
                                           'genre'  Brechtian Punk Cabaret
                                        'filesize'  4071630
                                           'mtime'  1662800157
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] Brechtian Punk Cabaret
                                      'tag_artist'  The Dresden Dolls
                                     'tag_release'  Live Covers
                                       'tag_title'  Baby One More Time ( Britney Spears)
                                             'bpm'  132.5
                                    'search_title'  'baby':1 'britney':5 'more':3 'one':2 'spears':6,7 'time':4
                                   'search_artist'  'dolls':3 'dresden':2 'the':1
                                  'search_release'  'covers':2 'live':1
                                     'search_rest'  '0yay1':2,3 'brechtian':4 'cabaret':6 'prev':7 'prevset':1 'punk':5 'set':8
                                    'search_combo'  '0yay1':14,15 'baby':1A 'brechtian':16 'britney':5A 'cabaret':18 'covers':12C 'dolls':10B 'dresden':9B 'live':11C 'more':3A 'one':2A 'prev':19 'prevset':13 'punk':17 'set':20 'spears':6A,7A 'the':8B 'time':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800156.7935534  (2022-09-10 10:55:56)
                             'size'  4071630