======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '139'
                                          'artist'  'The Cat Empire'
                                     'text_people'  ''
                                         'release'  'The Cat Empire'
                                           'title'  'Beanni'
                                           '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'  '10'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'funk,jazz,ska'
                                             'bpm'  '100.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Cat Empire'
'TBPM' (BPM (beats per minute))                     '100.4'
'TCON' (Content type, a.k.a. Genre)                 'funk,jazz,ska'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Beanni'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cat Empire'
'TPE2' (Band/orchestra/accompaniment)               'The Cat Empire'
'TRCK' (Track number/Position in set)               '10'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'

========================== row from database ==========================
                                              'id'  1538293
                                            'path'  /data/Music/Other/PrevSet/[9zdesorted]/Cat Empire/Beanni.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  139
                                           'genre'  funk,jazz,ska
                                        'filesize'  3341793
                                           'mtime'  1662800610
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9zdesorted] funk,jazz,ska
                                      'tag_artist'  The Cat Empire
                                     'tag_release'  The Cat Empire
                                       'tag_title'  Beanni
                                             'bpm'  100.4
                                    'search_title'  'beanni':1
                                   'search_artist'  'cat':2 'empire':3 'the':1
                                  'search_release'  'cat':2 'empire':3 'the':1
                                     'search_rest'  '9zdesorted':2,3 'funk':4,7 'jazz':5,8 'prev':10 'prevset':1 'set':11 'ska':6,9
                                    'search_combo'  '9zdesorted':9,10 'beanni':1A 'cat':3B,6C 'empire':4B,7C 'funk':11,14 'jazz':12,15 'prev':17 'prevset':8 'set':18 'ska':13,16 'the':2B,5C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800610.230915  (2022-09-10 11:03:30)
                             'size'  3341793