======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '154'
                                          'artist'  'Bob Scholte'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mooi Marietje (Ess Dat Dann Nix Marie)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['nederlandstalig', 'netherlands', 'nederlands', 'oldies', 'dutch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;loc-eur-netherlands'
                                             'bpm'  '94.991'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '94.991'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'loc-eur-netherlands']
'TDRC' (Recording time)                             '1938'
'TIT2' (Title/songname/content description)         'Mooi Marietje (Ess Dat Dann Nix Marie)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Scholte'
'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:lastfmtags'                                   ['nederlandstalig', 'netherlands', 'nederlands', 'oldies', 'dutch']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.470807'

========================== row from database ==========================
                                              'id'  1432225
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Bob Scholte - Mooi Marietje (Ess Dat Dann Nix Marie) 1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  154
                                           'genre'  prerock-vocal;loc-eur-netherlands
                                        'filesize'  3094322
                                           'mtime'  1621627374
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 1938 prerock vocal;loc eur netherlands
                                      'tag_artist'  Bob Scholte
                                     'tag_release'  None
                                       'tag_title'  Mooi Marietje (Ess Dat Dann Nix Marie)
                                             'bpm'  94.991
                                    'search_title'  'dann':6 'dat':5 'ess':3,4 'marie':8,9 'marietje':2 'mooi':1 'nix':7
                                   'search_artist'  'bob':1 'scholte':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1938':6 'country':4 'eur':12 'exotica':2 'jazz':1 'loc':9,11 'netherlands':13 'oldies':3 'prerock':7 'vocal':8,10
                                    'search_combo'  '00oldiepop':16 '1938':17 'bob':10B 'country':15 'dann':6A 'dat':5A 'ess':3A,4A 'eur':23 'exotica':13 'jazz':12 'loc':20,22 'marie':8A,9A 'marietje':2A 'mooi':1A 'netherlands':24 'nix':7A 'oldies':14 'prerock':18 'scholte':11B 'vocal':19,21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', '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-1']
                                      'lastfmtags'  ['nederlandstalig', 'netherlands', 'nederlands', 'oldies', 'dutch']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627374.3456218  (2021-05-21 22:02:54)
                             'size'  3094322