======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '71'
                                          'artist'  'Bartoes'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Hallo Hallo U Spreekt Met Sluik De Slachter (Pro Duitse Propaganda)'
                                           '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-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '129.068'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '129.068'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1941'
'TIT2' (Title/songname/content description)         'Hallo Hallo U Spreekt Met Sluik De Slachter (Pro Duitse Propaganda)'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bartoes'
'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: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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.461094'

========================== row from database ==========================
                                              'id'  1430053
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1941/Bartoes - Hallo Hallo U Spreekt Met Sluik De Slachter (pro duitse propaganda) 1941.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  71
                                           'genre'  prerock-unsorted
                                        'filesize'  1425202
                                           'mtime'  1621698040
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1941 (pro duitse propaganda) 1941 prerock unsorted
                                      'tag_artist'  Bartoes
                                     'tag_release'  None
                                       'tag_title'  Hallo Hallo U Spreekt Met Sluik De Slachter (Pro Duitse Propaganda)
                                             'bpm'  129.068
                                    'search_title'  'de':6 'duitse':10 'hallo':1 'met':4 'pro':8,9 'propaganda':11,12 'slachter':7 'sluik':5 'spreekt':3 'u':2
                                   'search_artist'  'bartoes':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1941':6 'country':4 'duitse':9 'exotica':2 'jazz':1 'oldies':3 'prerock':12 'pro':7,8 'propaganda':10,11 'unsorted':13
                                    'search_combo'  '00oldiepop':18 '1941':19 'bartoes':13B 'country':17 'de':6A 'duitse':10A,22 'exotica':15 'hallo':1A 'jazz':14 'met':4A 'oldies':16 'prerock':25 'pro':8A,9A,20,21 'propaganda':11A,12A,23,24 'slachter':7A 'sluik':5A 'spreekt':3A 'u':2A 'unsorted':26
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1941
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698040.1248446  (2021-05-22 17:40:40)
                             'size'  1425202