======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '138'
                                          'artist'  'Lou Bandy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Daar Kan Een Ronde Zeeman Niet Om Treuren (+ Ramblers)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['kleinkunst', 'nl', 'nederlandstalig', 'nederlands', 'schlager oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands;prerock-vocal'
                                             'bpm'  '121.482'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.482'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-netherlands', 'prerock-vocal']
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         'Daar Kan Een Ronde Zeeman Niet Om Treuren (+ Ramblers)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lou Bandy'
'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'                                   ['kleinkunst', 'nl', 'nederlandstalig', 'nederlands', 'schlager oldies']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.46 dB'
'TXXX:replaygain_track_peak'                        '0.775035'

========================== row from database ==========================
                                              'id'  1435489
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1940/Lou Bandy - Daar Kan Een Ronde Zeeman Niet Om Treuren (+ Ramblers) 25-1-1940.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  138
                                           'genre'  loc-eur-netherlands;prerock-vocal
                                        'filesize'  2772654
                                           'mtime'  1621627511
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1940 25 1 1940 loc netherlands;prerock vocal
                                      'tag_artist'  Lou Bandy
                                     'tag_release'  None
                                       'tag_title'  Daar Kan Een Ronde Zeeman Niet Om Treuren (+ Ramblers)
                                             'bpm'  121.482
                                    'search_title'  'daar':1 'een':3 'kan':2 'niet':6 'om':7 'ramblers':9,10 'ronde':4 'treuren':8 'zeeman':5
                                   'search_artist'  'bandy':2 'lou':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1':8 '1940':6 '25':7 'country':4 'exotica':2 'jazz':1 'loc':9 'netherlands':10,12 'oldies':3 'prerock':11,13 'vocal':14
                                    'search_combo'  '00oldiepop':17 '1':20 '1940':18 '25':19 'bandy':12B 'country':16 'daar':1A 'een':3A 'exotica':14 'jazz':13 'kan':2A 'loc':21 'lou':11B 'netherlands':22,24 'niet':6A 'oldies':15 'om':7A 'prerock':23,25 'ramblers':9A,10A 'ronde':4A 'treuren':8A 'vocal':26 'zeeman':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['kleinkunst', 'nl', 'nederlandstalig', 'nederlands', 'schlager oldies']
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627510.9423022  (2021-05-21 22:05:10)
                             'size'  2772654