======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '139'
                                          'artist'  'Richard Cheese'
                                     'text_people'  ''
                                         'release'  'Tuxicity'
                                           'title'  'Get Down With the Sickness'
                                           'quals'  "['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-2', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  '刀漀挀欀'
                                             'bpm'  '120.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Tuxicity'
'TBPM' (BPM (beats per minute))                     '120.1'
'TCON' (Content type, a.k.a. Genre)                 '刀漀挀欀'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Get Down With the Sickness'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Richard Cheese'
'TPUB' (Publisher)                                  'Ideatown'
'TRCK' (Track number/Position in set)               '4'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '3'

========================== row from database ==========================
                                              'id'  1538307
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Richard Cheese/Get Down With The Sickness.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  139
                                           'genre'  刀漀挀欀
                                        'filesize'  3354786
                                           'mtime'  1662800505
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] The 刀漀挀欀
                                      'tag_artist'  Richard Cheese
                                     'tag_release'  Tuxicity
                                       'tag_title'  Get Down With the Sickness
                                             'bpm'  120.1
                                    'search_title'  'down':2 'get':1 'sickness':5 'the':4 'with':3
                                   'search_artist'  'cheese':2 'richard':1
                                  'search_release'  'tuxicity':1
                                     'search_rest'  '9amusing':2,3 'prev':6 'prevset':1 'set':7 'the':4 '刀漀挀欀':5
                                    'search_combo'  '9amusing':10,11 'cheese':7B 'down':2A 'get':1A 'prev':14 'prevset':9 'richard':6B 'set':15 'sickness':5A 'the':4A,12 'tuxicity':8C 'with':3A '刀漀挀欀':13
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-2', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800505.3742998  (2022-09-10 11:01:45)
                             'size'  3354786