======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '171'
                                          'artist'  'Jack Payne'
                                     'text_people'  ''
                                         'release'  'Rex  8693'
                                           'title'  'Darling Of The Guards (vocal - Billy Scott Coomber)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', '1308fh', 'wartime', 'classic jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '118.636'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rex  8693'
'TBPM' (BPM (beats per minute))                     '118.636'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         'Darling Of The Guards (vocal - Billy Scott Coomber)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Payne'
'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'                                   ['all', 'jazz', '1308fh', 'wartime', 'classic jazz']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                        '+2.04 dB'
'TXXX:replaygain_track_peak'                        '0.555971'

========================== row from database ==========================
                                              'id'  1431566
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Jack Payne - Darling Of The Guards (vocal - Billy Scott Coomber) -1-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  171
                                           'genre'  prerock-swing
                                        'filesize'  3434290
                                           'mtime'  1620560893
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1936 1 1936 prerock swing
                                      'tag_artist'  Jack Payne
                                     'tag_release'  Rex  8693
                                       'tag_title'  Darling Of The Guards (vocal - Billy Scott Coomber)
                                             'bpm'  118.636
                                    'search_title'  'billy':7 'coomber':9,10 'darling':1 'guards':4 'of':2 'scott':8 'the':3 'vocal':5,6
                                   'search_artist'  'jack':1 'payne':2
                                  'search_release'  '8693':2 'rex':1
                                     'search_rest'  '00oldiepop':5 '1':7 '1936':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':19 '1':21 '1936':20 '8693':14C 'billy':7A 'coomber':9A,10A 'country':18 'darling':1A 'exotica':16 'guards':4A 'jack':11B 'jazz':15 'of':2A 'oldies':17 'payne':12B 'prerock':22 'rex':13C 'scott':8A 'swing':23 'the':3A 'vocal':5A,6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['all', 'jazz', '1308fh', 'wartime', 'classic jazz']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560893.015252  (2021-05-09 13:48:13)
                             'size'  3434290