======================== unified (from filesystem) ========================
                                         'bitrate'  '160.003'
                                        'duration'  '330'
                                          'artist'  'Midnight Oil'
                                     'text_people'  ''
                                         'release'  'Earth and Sun and Moon'
                                           'title'  'Drums of Heaven'
                                           'quals'  "['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'Rock'
                                             'bpm'  '102.0'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:eng'                            'ogg had 160 kbps 44100 Hz'
'TALB' (Album/Movie/Show title)                     'Earth and Sun and Moon'
'TBPM' (BPM (beats per minute))                     '102.0'
'TCON' (Content type, a.k.a. Genre)                 'Rock'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Drums of Heaven'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Midnight Oil'
'TRCK' (Track number/Position in set)               '7'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'

========================== row from database ==========================
                                              'id'  1538856
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Midnight Oil/Earth and Sun and Moon/07 - Midnight Oil - Drums of Heaven.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  330
                                           'genre'  Rock
                                        'filesize'  6628980
                                           'mtime'  1662800319
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] 07 Rock
                                      'tag_artist'  Midnight Oil
                                     'tag_release'  Earth and Sun and Moon
                                       'tag_title'  Drums of Heaven
                                             'bpm'  102.0
                                    'search_title'  'drums':1 'heaven':3 'of':2
                                   'search_artist'  'midnight':1 'oil':2
                                  'search_release'  'and':2 'earth':1 'moon':4 'sun':3
                                     'search_rest'  '0yay1':2,3 'prev':5 'prevset':1 'rock':4 'set':6
                                    'search_combo'  '0yay1':11,12 'and':7C 'drums':1A 'earth':6C 'heaven':3A 'midnight':4B 'moon':9C 'of':2A 'oil':5B 'prev':14 'prevset':10 'rock':13 'set':15 'sun':8C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800318.740324  (2022-09-10 10:58:38)
                             'size'  6628980