======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '225'
                                          'artist'  'Tom Clare'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Who Bashed Bill Kaiser'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1910s', 'wwi']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '113.7'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '113.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1916'
'TIT2' (Title/songname/content description)         'Who Bashed Bill Kaiser'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '225000'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Clare'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['1910s', 'wwi']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.92 dB'
'TXXX:replaygain_track_peak'                        '0.671789'

========================== row from database ==========================
                                              'id'  1460035
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Tom Clare - Who Bashed Bill Kaiser 1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  225
                                           'genre'  prerock-unsorted
                                        'filesize'  4560228
                                           'mtime'  1621697802
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 1916 prerock unsorted
                                      'tag_artist'  Tom Clare
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Who Bashed Bill Kaiser
                                             'bpm'  113.7
                                    'search_title'  'bashed':2 'bill':3 'kaiser':4 'who':1
                                   'search_artist'  'clare':2 'tom':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1916':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':16 '1916':17 'album':8C 'bashed':2A 'bill':3A 'clare':6B 'country':15 'exotica':13 'jazz':12 'kaiser':4A 'non':7C 'nonalbum':9C 'oldies':14 'prerock':18 'tom':5B 'tracks':10C,11C 'unsorted':19 'who':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1910s', 'wwi']
                                        'tag_date'  1916
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1621697802.1391034  (2021-05-22 17:36:42)
                             'size'  4560228