======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '196'
                                          'artist'  'Gorillaz'
                                     'text_people'  ''
                                         'release'  'demon days'
                                           'title'  "Fire Coming Out of the Monkey's Head"
                                           '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'  '13'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Electronic'
                                             'bpm'  '100.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'demon days'
'TBPM' (BPM (beats per minute))                     '100.2'
'TCON' (Content type, a.k.a. Genre)                 'Electronic'
'TIT2' (Title/songname/content description)         "Fire Coming Out of the Monkey's Head"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gorillaz'
'TPE2' (Band/orchestra/accompaniment)               'Gorillaz'
'TRCK' (Track number/Position in set)               '13'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.488248'

========================== row from database ==========================
                                              'id'  1538399
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Monkey/Gorillaz - fire coming out of a monkey's head.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  196
                                           'genre'  Electronic
                                        'filesize'  4727310
                                           'mtime'  1662800573
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] fire coming out monkey's head Electronic
                                      'tag_artist'  Gorillaz
                                     'tag_release'  demon days
                                       'tag_title'  Fire Coming Out of the Monkey's Head
                                             'bpm'  100.2
                                    'search_title'  'coming':2 'fire':1 'head':9 'monkey':6 'monkeys':8 'of':4 'out':3 's':7 'the':5
                                   'search_artist'  'gorillaz':1
                                  'search_release'  'days':2 'demon':1
                                     'search_rest'  '9amusing':2,3 'coming':5 'electronic':11 'fire':4 'head':10 'monkey':7 'monkeys':9 'out':6 'prev':12 'prevset':1 's':8 'set':13
                                    'search_combo'  '9amusing':14,15 'coming':2A,17 'days':12C 'demon':11C 'electronic':23 'fire':1A,16 'gorillaz':10B 'head':9A,22 'monkey':6A,19 'monkeys':8A,21 'of':4A 'out':3A,18 'prev':24 'prevset':13 's':7A,20 'set':25 'the':5A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800573.028116  (2022-09-10 11:02:53)
                             'size'  4727310