======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '136'
                                          'artist'  'New London Consort'
                                     'text_people'  ''
                                         'release'  'Philip Pickett / Ars Subtilior'
                                           'title'  'Quan je voy le duc / Anon.'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['renaissance', '1306fh', 'loved1306', 'medieval', 'early music']"
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur'
                                             'bpm'  '127.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Philip Pickett / Ars Subtilior'
'TBPM' (BPM (beats per minute))                     '127.1'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur'
'TIT2' (Title/songname/content description)         'Quan je voy le duc / Anon.'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'New London Consort'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'classical'
'TXXX:lastfmtags'                                   ['renaissance', '1306fh', 'loved1306', 'medieval', 'early music']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.23 dB'
'TXXX:replaygain_track_peak'                        '0.591658'

========================== row from database ==========================
                                              'id'  1247722
                                            'path'  /data/Music/Bulk/00localcharacter/New London Consort - Middeleeuws/Quan je voy le duc  Anon..mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  136
                                           'genre'  loc-eur
                                        'filesize'  2183591
                                           'mtime'  1620536056
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Middeleeuws loc eur
                                      'tag_artist'  New London Consort
                                     'tag_release'  Philip Pickett / Ars Subtilior
                                       'tag_title'  Quan je voy le duc / Anon.
                                             'bpm'  127.1
                                    'search_title'  'anon':6,7 'duc':5 'je':2 'le':4 'quan':1 'voy':3
                                   'search_artist'  'consort':3 'london':2 'new':1
                                  'search_release'  'ars':3 'philip':1 'pickett':2 'subtilior':4
                                     'search_rest'  'eur':3 'loc':2 'middeleeuws':1
                                    'search_combo'  'anon':6A,7A 'ars':13C 'consort':10B 'duc':5A 'eur':17 'je':2A 'le':4A 'loc':16 'london':9B 'middeleeuws':15 'new':8B 'philip':11C 'pickett':12C 'quan':1A 'subtilior':14C 'voy':3A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['renaissance', '1306fh', 'loved1306', 'medieval', 'early music']
                                        'tag_date'  
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1620536056.0980153  (2021-05-09 06:54:16)
                             'size'  2183591