======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '153'
                                          'artist'  'Benny Goodman & His Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '120 Mission to Moscow - Benny Goodman & His Orchestra (9-10-1943)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', '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'  "['oldies', 'jazz', 'benny goodman', 'big band', 'swing', 'clarinet']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '120'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '123.256'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '123.256'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         '120 Mission to Moscow - Benny Goodman & His Orchestra (9-10-1943)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Benny Goodman & His Orchestra'
'TRCK' (Track number/Position in set)               '120'
'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'                                   ['oldies', 'jazz', 'benny goodman', 'big band', 'swing', 'clarinet']
'TXXX:q-bass'                                       '4'
'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'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.291719'

========================== row from database ==========================
                                              'id'  1455398
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/120 Mission to Moscow - Benny Goodman & His Orchestra (9-10-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  153
                                           'genre'  prerock-swing
                                        'filesize'  2456787
                                           'mtime'  1620561847
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock swing
                                      'tag_artist'  Benny Goodman & His Orchestra
                                     'tag_release'  None
                                       'tag_title'  120 Mission to Moscow - Benny Goodman & His Orchestra (9-10-1943)
                                             'bpm'  123.256
                                    'search_title'  '10':10 '120':1 '1943':11 '9':9 '9101943':12 'benny':5 'goodman':6 'his':7 'mission':2 'moscow':4 'orchestra':8 'to':3
                                   'search_artist'  'benny':1 'goodman':2 'his':3 'orchestra':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'swing':7
                                    'search_combo'  '00oldiepop':21 '10':10A '120':1A '1943':11A '9':9A '9101943':12A 'benny':5A,13B 'country':20 'exotica':18 'goodman':6A,14B 'his':7A,15B 'jazz':17 'mission':2A 'moscow':4A 'oldies':19 'orchestra':8A,16B 'prerock':22 'swing':23 'to':3A
                                    'tag_tracknum'  120
                                      'num_images'  0
                                             'key'  6A
                                           '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-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'jazz', 'benny goodman', 'big band', 'swing', 'clarinet']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561846.9384542  (2021-05-09 14:04:06)
                             'size'  2456787