======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '145'
                                          'artist'  'David Rose & His Orchestra'
                                     'text_people'  ''
                                         'release'  'From CD - orig. Victor 27853'
                                           'title'  '059 Holiday for strings - David Rose & His Orchestra (19-06-1943)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'lounge', 'all', 'space age pop', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '59'
                                      'tracktotal'  ''
                                            'date'  '1944'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '118.915'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'From CD - orig. Victor 27853'
'TBPM' (BPM (beats per minute))                     '118.915'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1944'
'TIT2' (Title/songname/content description)         '059 Holiday for strings - David Rose & His Orchestra (19-06-1943)'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'David Rose & His Orchestra'
'TRCK' (Track number/Position in set)               '59'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'lounge', 'all', 'space age pop', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.43 dB'
'TXXX:replaygain_track_peak'                        '0.527875'

========================== row from database ==========================
                                              'id'  1455735
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/059 Holiday for strings - David Rose & His Orchestra (19-06-1943).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  145
                                           'genre'  prerock-swing
                                        'filesize'  1454937
                                           'mtime'  1620561835
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock swing
                                      'tag_artist'  David Rose & His Orchestra
                                     'tag_release'  From CD - orig. Victor 27853
                                       'tag_title'  059 Holiday for strings - David Rose & His Orchestra (19-06-1943)
                                             'bpm'  118.915
                                    'search_title'  '06':9 '19':8 '19061943':11 '1943':10 'david':4 'for':2 'his':6 'holiday':1 'orchestra':7 'rose':5 'strings':3
                                   'search_artist'  'david':1 'his':3 'orchestra':4 'rose':2
                                  'search_release'  '27853':6 'cd':2 'from':1 'orig':3,4 'victor':5
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'swing':7
                                    'search_combo'  '00oldiepop':26 '06':9A '19':8A '19061943':11A '1943':10A '27853':21C 'cd':17C 'country':25 'david':4A,12B 'exotica':23 'for':2A 'from':16C 'his':6A,14B 'holiday':1A 'jazz':22 'oldies':24 'orchestra':7A,15B 'orig':18C,19C 'prerock':27 'rose':5A,13B 'strings':3A 'swing':28 'victor':20C
                                    'tag_tracknum'  59
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'lounge', 'all', 'space age pop', 'easy listening']
                                        'tag_date'  1944
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561834.7263808  (2021-05-09 14:03:54)
                             'size'  1454937