======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '208'
                                          'artist'  'Klaas van Beeck AVRO Dansorkest '
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Everything Has Changed Dear (v - Lammy van den Hout)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;loc-eur-netherlands'
                                             'bpm'  '107.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '107.4'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'loc-eur-netherlands']
'TDRC' (Recording time)                             '1940-03-20'
'TIT2' (Title/songname/content description)         'Everything Has Changed Dear (v - Lammy van den Hout)'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '208000'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaas van Beeck AVRO Dansorkest '
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.86 dB'
'TXXX:replaygain_track_peak'                        '0.645562'

========================== row from database ==========================
                                              'id'  1464351
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1940/Klaas van Beeck AVRO Dansorkest - Everything Has Changed Dear (v - Lammy van den Hout) 20-3-1940.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  208
                                           'genre'  prerock-vocal;loc-eur-netherlands
                                        'filesize'  4210615
                                           'mtime'  1621627511
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1940 20 3 1940 prerock vocal;loc eur netherlands
                                      'tag_artist'  Klaas van Beeck AVRO Dansorkest 
                                     'tag_release'  None
                                       'tag_title'  Everything Has Changed Dear (v - Lammy van den Hout)
                                             'bpm'  107.4
                                    'search_title'  'changed':3 'dear':4 'den':9 'everything':1 'has':2 'hout':10,11 'lammy':7 'v':5,6 'van':8
                                   'search_artist'  'avro':4 'beeck':3 'dansorkest':5 'klaas':1 'van':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1940':6 '20':7 '3':8 'country':4 'eur':14 'exotica':2 'jazz':1 'loc':11,13 'netherlands':15 'oldies':3 'prerock':9 'vocal':10,12
                                    'search_combo'  '00oldiepop':21 '1940':22 '20':23 '3':24 'avro':15B 'beeck':14B 'changed':3A 'country':20 'dansorkest':16B 'dear':4A 'den':9A 'eur':30 'everything':1A 'exotica':18 'has':2A 'hout':10A,11A 'jazz':17 'klaas':12B 'lammy':7A 'loc':27,29 'netherlands':31 'oldies':19 'prerock':25 'v':5A,6A 'van':8A,13B 'vocal':26,28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627510.8927014  (2021-05-21 22:05:10)
                             'size'  4210615