======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '137'
                                          'artist'  'Animals of Africa'
                                     'text_people'  ''
                                         'release'  'Sounds of the Jungle, Plain & Bush'
                                           'title'  'Wildebeest'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['non music', 'field recording']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments;loc-africa'
                                             'bpm'  '110.603'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Nonesuch 79705'
'TALB' (Album/Movie/Show title)                     'Sounds of the Jungle, Plain & Bush'
'TBPM' (BPM (beats per minute))                     '110.603'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-fragments', 'loc-africa']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Wildebeest'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Animals of Africa'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['non music', 'field recording']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.48 dB'
'TXXX:replaygain_track_peak'                        '0.609903'

========================== row from database ==========================
                                              'id'  759312
                                            'path'  /data/Music/Bulk/00localcharacter/explorer series - animals of africa; sounds of the jungle, plain & bush/06 - Wildebeest.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  137
                                           'genre'  nonmusic-fragments;loc-africa
                                        'filesize'  3311260
                                           'mtime'  1621696449
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter explorer series animals africa; sounds jungle, plain bush 06 nonmusic fragments;loc africa
                                      'tag_artist'  Animals of Africa
                                     'tag_release'  Sounds of the Jungle, Plain & Bush
                                       'tag_title'  Wildebeest
                                             'bpm'  110.603
                                    'search_title'  'wildebeest':1
                                   'search_artist'  'africa':3 'animals':1 'of':2
                                  'search_release'  'bush':7 'jungle':4,5 'of':2 'plain':6 'sounds':1 'the':3
                                     'search_rest'  'africa':4,5,16 'animals':3 'bush':10 'explorer':1 'fragments':12,14 'jungle':7,8 'loc':13,15 'nonmusic':11 'plain':9 'series':2 'sounds':6
                                    'search_combo'  'africa':4B,15,16,27 'animals':2B,14 'bush':11C,21 'explorer':12 'fragments':23,25 'jungle':8C,9C,18,19 'loc':24,26 'nonmusic':22 'of':3B,6C 'plain':10C,20 'series':13 'sounds':5C,17 'the':7C 'wildebeest':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['non music', 'field recording']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696448.8975306  (2021-05-22 17:14:08)
                             'size'  3311260